An elegant aspect for enumerate the equations of a bookar package for Aspect Ratio symbolgrayed box for enumerateTypeset book for childrenFirst paragraph of the enumerate in boldCustomized bold labels for enumerateTemplate for a heavily illustrated bookDefault formatting for manually entered enumerate tagschngcntr package works for first chapter but not for other chapters of bookHow to get the aspect ratio of an image programmaticallyDynamic counter for corollaries of Theorems and Propositions at the same time

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An elegant aspect for enumerate the equations of a book

ar package for Aspect Ratio symbolgrayed box for enumerateTypeset book for childrenFirst paragraph of the enumerate in boldCustomized bold labels for enumerateTemplate for a heavily illustrated bookDefault formatting for manually entered enumerate tagschngcntr package works for first chapter but not for other chapters of bookHow to get the aspect ratio of an image programmaticallyDynamic counter for corollaries of Theorems and Propositions at the same time

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;

I am trying to create this kind of enumeration for the various equations of my book, similar, as this image:

enter image description here

My MWE is:

documentclassbook
usepackagemathtools
usepackagenewtxtext
usepackagenewtxmath
PassOptionsToPackagesvgnames, dvipsnames, table, x11namesxcolor
usepackagetikz
usepackageclassico
usepackagepifont
definecolorocreRGB243,102,25 
%----------------------------------------------------------------------------------
% Change number equations with sections
%----------------------------------------------------------------------------------
usepackagechngcntr
counterwithinequationsection
renewcommandtheequationbfseriessffamilythesection-arabicequationtextcolorocreding228
begindocument
beginequation
oint mathbfE cdot d mathbfa = int rho , dv 
endequation
beginequation
oint mathbfB cdot d mathbfa = mathbf0 
endequation
enddocument

with this output:

enter image description here

I have encountered the following problems (see the image below):

enter image description here

I don't know how to eliminate the round brackets;

if we suppose we don't delete the round brackets, the one on the left is not in bold while the one on the right is in bold.

Using the pifont package I was trying to reverse the direction of the arrow to the left using rotatebox......, with the graphicx package, but I am not, probably, to rotate the direction of the arrow to the left.

asked 8 hours ago

Sebastiano

13.4k5 gold badges25 silver badges71 bronze badges

1

What should a ref (or eqref) for an equation look like within your text?

– Werner
8 hours ago

@Werner You're right. I hadn't thought of that. It must appear with round brackets in bold without the symbol. Since I am not good in English and I use the translator, since sometimes my question is not understandable to everyone, can I ask you to edit my question please? Upvote your comment.

– Sebastiano
8 hours ago

So, something like this (forget the round brackets in the reference). Are you okay with using a user-defined eqnref (rather than ref or eqref)?

– Werner
8 hours ago

@Werner For both text (eqref) and for the equations, leave the brackets round. For the rest it's ok :-). I have understood that you will have to introduce a new macro for eqnref to get what you can't have by default.

– Sebastiano
8 hours ago

1

newtagformSebastianoreflectboxtextcolorocreding227 usetagformSebastiano renewcommandtheequationbfseriessffamilythesection-arabicequation?

– marmot
8 hours ago

|
show 1 more comment

I am trying to create this kind of enumeration for the various equations of my book, similar, as this image:

enter image description here

My MWE is:

documentclassbook
usepackagemathtools
usepackagenewtxtext
usepackagenewtxmath
PassOptionsToPackagesvgnames, dvipsnames, table, x11namesxcolor
usepackagetikz
usepackageclassico
usepackagepifont
definecolorocreRGB243,102,25 
%----------------------------------------------------------------------------------
% Change number equations with sections
%----------------------------------------------------------------------------------
usepackagechngcntr
counterwithinequationsection
renewcommandtheequationbfseriessffamilythesection-arabicequationtextcolorocreding228
begindocument
beginequation
oint mathbfE cdot d mathbfa = int rho , dv 
endequation
beginequation
oint mathbfB cdot d mathbfa = mathbf0 
endequation
enddocument

with this output:

enter image description here

I have encountered the following problems (see the image below):

enter image description here

I don't know how to eliminate the round brackets;

if we suppose we don't delete the round brackets, the one on the left is not in bold while the one on the right is in bold.

Using the pifont package I was trying to reverse the direction of the arrow to the left using rotatebox......, with the graphicx package, but I am not, probably, to rotate the direction of the arrow to the left.

asked 8 hours ago

Sebastiano

13.4k5 gold badges25 silver badges71 bronze badges

1

What should a ref (or eqref) for an equation look like within your text?

– Werner
8 hours ago

@Werner You're right. I hadn't thought of that. It must appear with round brackets in bold without the symbol. Since I am not good in English and I use the translator, since sometimes my question is not understandable to everyone, can I ask you to edit my question please? Upvote your comment.

– Sebastiano
8 hours ago

So, something like this (forget the round brackets in the reference). Are you okay with using a user-defined eqnref (rather than ref or eqref)?

– Werner
8 hours ago

@Werner For both text (eqref) and for the equations, leave the brackets round. For the rest it's ok :-). I have understood that you will have to introduce a new macro for eqnref to get what you can't have by default.

– Sebastiano
8 hours ago

1

newtagformSebastianoreflectboxtextcolorocreding227 usetagformSebastiano renewcommandtheequationbfseriessffamilythesection-arabicequation?

– marmot
8 hours ago

|
show 1 more comment

I am trying to create this kind of enumeration for the various equations of my book, similar, as this image:

enter image description here

My MWE is:

documentclassbook
usepackagemathtools
usepackagenewtxtext
usepackagenewtxmath
PassOptionsToPackagesvgnames, dvipsnames, table, x11namesxcolor
usepackagetikz
usepackageclassico
usepackagepifont
definecolorocreRGB243,102,25 
%----------------------------------------------------------------------------------
% Change number equations with sections
%----------------------------------------------------------------------------------
usepackagechngcntr
counterwithinequationsection
renewcommandtheequationbfseriessffamilythesection-arabicequationtextcolorocreding228
begindocument
beginequation
oint mathbfE cdot d mathbfa = int rho , dv 
endequation
beginequation
oint mathbfB cdot d mathbfa = mathbf0 
endequation
enddocument

with this output:

enter image description here

I have encountered the following problems (see the image below):

enter image description here

I don't know how to eliminate the round brackets;

if we suppose we don't delete the round brackets, the one on the left is not in bold while the one on the right is in bold.

Using the pifont package I was trying to reverse the direction of the arrow to the left using rotatebox......, with the graphicx package, but I am not, probably, to rotate the direction of the arrow to the left.

asked 8 hours ago

Sebastiano

13.4k5 gold badges25 silver badges71 bronze badges

I am trying to create this kind of enumeration for the various equations of my book, similar, as this image:

enter image description here

My MWE is:

documentclassbook
usepackagemathtools
usepackagenewtxtext
usepackagenewtxmath
PassOptionsToPackagesvgnames, dvipsnames, table, x11namesxcolor
usepackagetikz
usepackageclassico
usepackagepifont
definecolorocreRGB243,102,25 
%----------------------------------------------------------------------------------
% Change number equations with sections
%----------------------------------------------------------------------------------
usepackagechngcntr
counterwithinequationsection
renewcommandtheequationbfseriessffamilythesection-arabicequationtextcolorocreding228
begindocument
beginequation
oint mathbfE cdot d mathbfa = int rho , dv 
endequation
beginequation
oint mathbfB cdot d mathbfa = mathbf0 
endequation
enddocument

with this output:

enter image description here

I have encountered the following problems (see the image below):

enter image description here

I don't know how to eliminate the round brackets;

if we suppose we don't delete the round brackets, the one on the left is not in bold while the one on the right is in bold.

Using the pifont package I was trying to reverse the direction of the arrow to the left using rotatebox......, with the graphicx package, but I am not, probably, to rotate the direction of the arrow to the left.

graphics symbols color bold chngcntr

asked 8 hours ago

Sebastiano

13.4k5 gold badges25 silver badges71 bronze badges

asked 8 hours ago

Sebastiano

13.4k5 gold badges25 silver badges71 bronze badges

asked 8 hours ago

Sebastiano

13.4k5 gold badges25 silver badges71 bronze badges

asked 8 hours ago

Sebastiano

13.4k5 gold badges25 silver badges71 bronze badges

asked 8 hours ago

Sebastiano

13.4k5 gold badges25 silver badges71 bronze badges

1

What should a ref (or eqref) for an equation look like within your text?

– Werner
8 hours ago

@Werner You're right. I hadn't thought of that. It must appear with round brackets in bold without the symbol. Since I am not good in English and I use the translator, since sometimes my question is not understandable to everyone, can I ask you to edit my question please? Upvote your comment.

– Sebastiano
8 hours ago

So, something like this (forget the round brackets in the reference). Are you okay with using a user-defined eqnref (rather than ref or eqref)?

– Werner
8 hours ago

@Werner For both text (eqref) and for the equations, leave the brackets round. For the rest it's ok :-). I have understood that you will have to introduce a new macro for eqnref to get what you can't have by default.

– Sebastiano
8 hours ago

1

newtagformSebastianoreflectboxtextcolorocreding227 usetagformSebastiano renewcommandtheequationbfseriessffamilythesection-arabicequation?

– marmot
8 hours ago

|
show 1 more comment

1

What should a ref (or eqref) for an equation look like within your text?

– Werner
8 hours ago

@Werner You're right. I hadn't thought of that. It must appear with round brackets in bold without the symbol. Since I am not good in English and I use the translator, since sometimes my question is not understandable to everyone, can I ask you to edit my question please? Upvote your comment.

– Sebastiano
8 hours ago

So, something like this (forget the round brackets in the reference). Are you okay with using a user-defined eqnref (rather than ref or eqref)?

– Werner
8 hours ago

@Werner For both text (eqref) and for the equations, leave the brackets round. For the rest it's ok :-). I have understood that you will have to introduce a new macro for eqnref to get what you can't have by default.

– Sebastiano
8 hours ago

1

newtagformSebastianoreflectboxtextcolorocreding227 usetagformSebastiano renewcommandtheequationbfseriessffamilythesection-arabicequation?

– marmot
8 hours ago

What should a ref (or eqref) for an equation look like within your text?

– Werner
8 hours ago

@Werner You're right. I hadn't thought of that. It must appear with round brackets in bold without the symbol. Since I am not good in English and I use the translator, since sometimes my question is not understandable to everyone, can I ask you to edit my question please? Upvote your comment.

– Sebastiano
8 hours ago

So, something like this (forget the round brackets in the reference). Are you okay with using a user-defined eqnref (rather than ref or eqref)?

– Werner
8 hours ago

@Werner For both text (eqref) and for the equations, leave the brackets round. For the rest it's ok :-). I have understood that you will have to introduce a new macro for eqnref to get what you can't have by default.

– Sebastiano
8 hours ago

newtagformSebastianoreflectboxtextcolorocreding227 usetagformSebastiano renewcommandtheequationbfseriessffamilythesection-arabicequation

?

– marmot
8 hours ago

newtagformSebastianoreflectboxtextcolorocreding227 usetagformSebastiano renewcommandtheequationbfseriessffamilythesection-arabicequation

?

– marmot
8 hours ago

|
show 1 more comment

2 Answers
2

active

oldest

votes

The following produces what you're after:

enter image description here

documentclassbook

usepackagemathtools
usepackage[svgnames, dvipsnames, table, x11names]xcolor
usepackagepifont

definecolorocreRGB243,102,25 
%----------------------------------------------------------------------------------
% Change number equations with sections
%----------------------------------------------------------------------------------
usepackagechngcntr
counterwithinequationsection

renewcommandtheequationthesection-arabicequation
newcommandeqnnumsymboltextcolorocrereflectboxding228

makeatletter
newtagformbbrackets% <name>
 [textbf]% Internal style
 (% Left bracket
 ifnumpdfstrcmp@currenvirequation=0
 eqnnumsymbol%
 else
 ifnumpdfstrcmp@currenviralign=0
 eqnnumsymbol%
 fi
 fi
 )% Right bracket
makeatother
usetagformbbrackets

begindocument

See both~eqrefeq:eqn1 and~eqrefeq:eqn2. Also see~eqrefeq:eqn3.

beginequation
 oint mathbfE cdot d mathbfa = int rho , mathrmdv labeleq:eqn1
endequation

beginequation
 oint mathbfB cdot d mathbfa = mathbf0 labeleq:eqn2
endequation

beginalign
 abc labeleq:eqn3
endalign

enddocument

It uses

mathtools' newtagform to establish a new form of tag for equations and related environments.

A conditional to set the symbol. If inside an equation or align, the symbol is added, otherwise it's left out. This allows you to use eqref. It's not extensively tested, but works in the example provided.

If you want to remove the bold numbering from your reference, you can use the following:

enter image description here

documentclassbook

usepackagemathtools
usepackage[svgnames, dvipsnames, table, x11names]xcolor
usepackagepifont

definecolorocreRGB243,102,25 
%----------------------------------------------------------------------------------
% Change number equations with sections
%----------------------------------------------------------------------------------
usepackagechngcntr
counterwithinequationsection

makeatletter

renewcommandtheequationthesection-arabicequation
newcommandeqnumfmt%
 ifnumpdfstrcmp@currenvirequation=0
 bfseries
 else
 ifnumpdfstrcmp@currenviralign=0
 bfseries
 fi
 fi
newcommandeqnnumsymboltextcolorocrereflectboxding228

newtagformbbrackets% <name>
 [eqnumfmt]% Internal style
 (bgroup% Left bracket
 ifnumpdfstrcmp@currenvirequation=0
 eqnnumsymbol%
 else
 ifnumpdfstrcmp@currenviralign=0
 eqnnumsymbol%
 fi
 fi
 egroup)% Right bracket
makeatother
usetagformbbrackets

begindocument

See both~eqrefeq:eqn1 and~eqrefeq:eqn2. Also see~eqrefeq:eqn3.

beginequation
 oint mathbfE cdot d mathbfa = int rho , mathrmdv labeleq:eqn1
endequation

beginequation
 oint mathbfB cdot d mathbfa = mathbf0 labeleq:eqn2
endequation

beginalign
 abc labeleq:eqn3
endalign

enddocument

edited 7 hours ago

answered 8 hours ago

Werner

456k75 gold badges1019 silver badges1751 bronze badges

I've had my doubts. But if I use your code within my book the numbering starts from 1 which is the first chapter or from scratch? I think it starts from scratch and I should change from 0 to 1. Finally, I forgot that there was the command reflectbox. I wanted to ask you if you could do an additional edit to delete the bold in the text part that calls the equation.

– Sebastiano
8 hours ago

1

@Sebastiano: The equation numbering is section-equation, so if you don't have a section, it will be 0. If you do, it will be 1 or higher. Also remember that sections are number per-chapter; in other words, reset to 0 when you issue chapter.

– Werner
8 hours ago

My sincere and cordial thanks for your help and for those who appreciated my question in particular.

– Sebastiano
7 hours ago

add a comment |

I propose this other solution, without parentheses, based on the newtagform command from mathtools and the adforn ornaments package, which has a left-oriented arrow tip. I took the liberty to change its colour, which suits better the black characters (quia gustum meum…). Of course, feel free to choose your own colour if you prefer it:

documentclassbook
usepackagemathtools
usepackagenewtxtext
usepackagenewtxmath
PassOptionsToPackagesvgnames, dvipsnames, table, x11namesxcolor
usepackagetikz
usepackageclassico
usepackageadforn
definecolorocreRGB243,102,25
%----------------------------------------------------------------------------------
% Change number equations with sections
%----------------------------------------------------------------------------------
counterwithinequationsection%
renewcommandtheequationthesection-arabicequation
newtagformarrowtip[bfseriessffamily],textcolorIndianRed3Largeadforn42
usetagformarrowtip

begindocument

setcounterchapter2
setcountersection5
beginequation
oint mathbfE cdot d mathbfa = int rho , dv
endequation
beginequation
oint mathbfB cdot d mathbfa = mathbf0
endequation

enddocument

enter image description here

edited 6 hours ago

answered 7 hours ago

Bernard

183k7 gold badges83 silver badges216 bronze badges

This does include the entire tag, as-is, in the reference (when using eqref). Something the OP doesn't seem interested in.

– Werner
6 hours ago

@Werner: You're right (ahd I wouldn't be interested either), but one can play with cleveref to solve the problem.

– Bernard
6 hours ago

@Bernard Your proposal is also interesting and I vote for it. I thank you and everyone for your cooperation. I have two different codes. I will try them both :-). Thank you for everything. My sincere greetings and compliments for the Latin language :-)-

– Sebastiano
33 mins ago

add a comment |

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2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

The following produces what you're after:

enter image description here

documentclassbook

usepackagemathtools
usepackage[svgnames, dvipsnames, table, x11names]xcolor
usepackagepifont

definecolorocreRGB243,102,25 
%----------------------------------------------------------------------------------
% Change number equations with sections
%----------------------------------------------------------------------------------
usepackagechngcntr
counterwithinequationsection

renewcommandtheequationthesection-arabicequation
newcommandeqnnumsymboltextcolorocrereflectboxding228

makeatletter
newtagformbbrackets% <name>
 [textbf]% Internal style
 (% Left bracket
 ifnumpdfstrcmp@currenvirequation=0
 eqnnumsymbol%
 else
 ifnumpdfstrcmp@currenviralign=0
 eqnnumsymbol%
 fi
 fi
 )% Right bracket
makeatother
usetagformbbrackets

begindocument

See both~eqrefeq:eqn1 and~eqrefeq:eqn2. Also see~eqrefeq:eqn3.

beginequation
 oint mathbfE cdot d mathbfa = int rho , mathrmdv labeleq:eqn1
endequation

beginequation
 oint mathbfB cdot d mathbfa = mathbf0 labeleq:eqn2
endequation

beginalign
 abc labeleq:eqn3
endalign

enddocument

It uses

mathtools' newtagform to establish a new form of tag for equations and related environments.

A conditional to set the symbol. If inside an equation or align, the symbol is added, otherwise it's left out. This allows you to use eqref. It's not extensively tested, but works in the example provided.

If you want to remove the bold numbering from your reference, you can use the following:

enter image description here

documentclassbook

usepackagemathtools
usepackage[svgnames, dvipsnames, table, x11names]xcolor
usepackagepifont

definecolorocreRGB243,102,25 
%----------------------------------------------------------------------------------
% Change number equations with sections
%----------------------------------------------------------------------------------
usepackagechngcntr
counterwithinequationsection

makeatletter

renewcommandtheequationthesection-arabicequation
newcommandeqnumfmt%
 ifnumpdfstrcmp@currenvirequation=0
 bfseries
 else
 ifnumpdfstrcmp@currenviralign=0
 bfseries
 fi
 fi
newcommandeqnnumsymboltextcolorocrereflectboxding228

newtagformbbrackets% <name>
 [eqnumfmt]% Internal style
 (bgroup% Left bracket
 ifnumpdfstrcmp@currenvirequation=0
 eqnnumsymbol%
 else
 ifnumpdfstrcmp@currenviralign=0
 eqnnumsymbol%
 fi
 fi
 egroup)% Right bracket
makeatother
usetagformbbrackets

begindocument

See both~eqrefeq:eqn1 and~eqrefeq:eqn2. Also see~eqrefeq:eqn3.

beginequation
 oint mathbfE cdot d mathbfa = int rho , mathrmdv labeleq:eqn1
endequation

beginequation
 oint mathbfB cdot d mathbfa = mathbf0 labeleq:eqn2
endequation

beginalign
 abc labeleq:eqn3
endalign

enddocument

edited 7 hours ago

answered 8 hours ago

Werner

456k75 gold badges1019 silver badges1751 bronze badges

I've had my doubts. But if I use your code within my book the numbering starts from 1 which is the first chapter or from scratch? I think it starts from scratch and I should change from 0 to 1. Finally, I forgot that there was the command reflectbox. I wanted to ask you if you could do an additional edit to delete the bold in the text part that calls the equation.

– Sebastiano
8 hours ago

1

@Sebastiano: The equation numbering is section-equation, so if you don't have a section, it will be 0. If you do, it will be 1 or higher. Also remember that sections are number per-chapter; in other words, reset to 0 when you issue chapter.

– Werner
8 hours ago

My sincere and cordial thanks for your help and for those who appreciated my question in particular.

– Sebastiano
7 hours ago

add a comment |

The following produces what you're after:

enter image description here

documentclassbook

usepackagemathtools
usepackage[svgnames, dvipsnames, table, x11names]xcolor
usepackagepifont

definecolorocreRGB243,102,25 
%----------------------------------------------------------------------------------
% Change number equations with sections
%----------------------------------------------------------------------------------
usepackagechngcntr
counterwithinequationsection

renewcommandtheequationthesection-arabicequation
newcommandeqnnumsymboltextcolorocrereflectboxding228

makeatletter
newtagformbbrackets% <name>
 [textbf]% Internal style
 (% Left bracket
 ifnumpdfstrcmp@currenvirequation=0
 eqnnumsymbol%
 else
 ifnumpdfstrcmp@currenviralign=0
 eqnnumsymbol%
 fi
 fi
 )% Right bracket
makeatother
usetagformbbrackets

begindocument

See both~eqrefeq:eqn1 and~eqrefeq:eqn2. Also see~eqrefeq:eqn3.

beginequation
 oint mathbfE cdot d mathbfa = int rho , mathrmdv labeleq:eqn1
endequation

beginequation
 oint mathbfB cdot d mathbfa = mathbf0 labeleq:eqn2
endequation

beginalign
 abc labeleq:eqn3
endalign

enddocument

It uses

mathtools' newtagform to establish a new form of tag for equations and related environments.

A conditional to set the symbol. If inside an equation or align, the symbol is added, otherwise it's left out. This allows you to use eqref. It's not extensively tested, but works in the example provided.

If you want to remove the bold numbering from your reference, you can use the following:

enter image description here

documentclassbook

usepackagemathtools
usepackage[svgnames, dvipsnames, table, x11names]xcolor
usepackagepifont

definecolorocreRGB243,102,25 
%----------------------------------------------------------------------------------
% Change number equations with sections
%----------------------------------------------------------------------------------
usepackagechngcntr
counterwithinequationsection

makeatletter

renewcommandtheequationthesection-arabicequation
newcommandeqnumfmt%
 ifnumpdfstrcmp@currenvirequation=0
 bfseries
 else
 ifnumpdfstrcmp@currenviralign=0
 bfseries
 fi
 fi
newcommandeqnnumsymboltextcolorocrereflectboxding228

newtagformbbrackets% <name>
 [eqnumfmt]% Internal style
 (bgroup% Left bracket
 ifnumpdfstrcmp@currenvirequation=0
 eqnnumsymbol%
 else
 ifnumpdfstrcmp@currenviralign=0
 eqnnumsymbol%
 fi
 fi
 egroup)% Right bracket
makeatother
usetagformbbrackets

begindocument

See both~eqrefeq:eqn1 and~eqrefeq:eqn2. Also see~eqrefeq:eqn3.

beginequation
 oint mathbfE cdot d mathbfa = int rho , mathrmdv labeleq:eqn1
endequation

beginequation
 oint mathbfB cdot d mathbfa = mathbf0 labeleq:eqn2
endequation

beginalign
 abc labeleq:eqn3
endalign

enddocument

edited 7 hours ago

answered 8 hours ago

Werner

456k75 gold badges1019 silver badges1751 bronze badges

I've had my doubts. But if I use your code within my book the numbering starts from 1 which is the first chapter or from scratch? I think it starts from scratch and I should change from 0 to 1. Finally, I forgot that there was the command reflectbox. I wanted to ask you if you could do an additional edit to delete the bold in the text part that calls the equation.

– Sebastiano
8 hours ago

1

@Sebastiano: The equation numbering is section-equation, so if you don't have a section, it will be 0. If you do, it will be 1 or higher. Also remember that sections are number per-chapter; in other words, reset to 0 when you issue chapter.

– Werner
8 hours ago

My sincere and cordial thanks for your help and for those who appreciated my question in particular.

– Sebastiano
7 hours ago

add a comment |

The following produces what you're after:

enter image description here

documentclassbook

usepackagemathtools
usepackage[svgnames, dvipsnames, table, x11names]xcolor
usepackagepifont

definecolorocreRGB243,102,25 
%----------------------------------------------------------------------------------
% Change number equations with sections
%----------------------------------------------------------------------------------
usepackagechngcntr
counterwithinequationsection

renewcommandtheequationthesection-arabicequation
newcommandeqnnumsymboltextcolorocrereflectboxding228

makeatletter
newtagformbbrackets% <name>
 [textbf]% Internal style
 (% Left bracket
 ifnumpdfstrcmp@currenvirequation=0
 eqnnumsymbol%
 else
 ifnumpdfstrcmp@currenviralign=0
 eqnnumsymbol%
 fi
 fi
 )% Right bracket
makeatother
usetagformbbrackets

begindocument

See both~eqrefeq:eqn1 and~eqrefeq:eqn2. Also see~eqrefeq:eqn3.

beginequation
 oint mathbfE cdot d mathbfa = int rho , mathrmdv labeleq:eqn1
endequation

beginequation
 oint mathbfB cdot d mathbfa = mathbf0 labeleq:eqn2
endequation

beginalign
 abc labeleq:eqn3
endalign

enddocument

It uses

mathtools' newtagform to establish a new form of tag for equations and related environments.

A conditional to set the symbol. If inside an equation or align, the symbol is added, otherwise it's left out. This allows you to use eqref. It's not extensively tested, but works in the example provided.

If you want to remove the bold numbering from your reference, you can use the following:

enter image description here

documentclassbook

usepackagemathtools
usepackage[svgnames, dvipsnames, table, x11names]xcolor
usepackagepifont

definecolorocreRGB243,102,25 
%----------------------------------------------------------------------------------
% Change number equations with sections
%----------------------------------------------------------------------------------
usepackagechngcntr
counterwithinequationsection

makeatletter

renewcommandtheequationthesection-arabicequation
newcommandeqnumfmt%
 ifnumpdfstrcmp@currenvirequation=0
 bfseries
 else
 ifnumpdfstrcmp@currenviralign=0
 bfseries
 fi
 fi
newcommandeqnnumsymboltextcolorocrereflectboxding228

newtagformbbrackets% <name>
 [eqnumfmt]% Internal style
 (bgroup% Left bracket
 ifnumpdfstrcmp@currenvirequation=0
 eqnnumsymbol%
 else
 ifnumpdfstrcmp@currenviralign=0
 eqnnumsymbol%
 fi
 fi
 egroup)% Right bracket
makeatother
usetagformbbrackets

begindocument

See both~eqrefeq:eqn1 and~eqrefeq:eqn2. Also see~eqrefeq:eqn3.

beginequation
 oint mathbfE cdot d mathbfa = int rho , mathrmdv labeleq:eqn1
endequation

beginequation
 oint mathbfB cdot d mathbfa = mathbf0 labeleq:eqn2
endequation

beginalign
 abc labeleq:eqn3
endalign

enddocument

edited 7 hours ago

answered 8 hours ago

Werner

456k75 gold badges1019 silver badges1751 bronze badges

The following produces what you're after:

enter image description here

documentclassbook

usepackagemathtools
usepackage[svgnames, dvipsnames, table, x11names]xcolor
usepackagepifont

definecolorocreRGB243,102,25 
%----------------------------------------------------------------------------------
% Change number equations with sections
%----------------------------------------------------------------------------------
usepackagechngcntr
counterwithinequationsection

renewcommandtheequationthesection-arabicequation
newcommandeqnnumsymboltextcolorocrereflectboxding228

makeatletter
newtagformbbrackets% <name>
 [textbf]% Internal style
 (% Left bracket
 ifnumpdfstrcmp@currenvirequation=0
 eqnnumsymbol%
 else
 ifnumpdfstrcmp@currenviralign=0
 eqnnumsymbol%
 fi
 fi
 )% Right bracket
makeatother
usetagformbbrackets

begindocument

See both~eqrefeq:eqn1 and~eqrefeq:eqn2. Also see~eqrefeq:eqn3.

beginequation
 oint mathbfE cdot d mathbfa = int rho , mathrmdv labeleq:eqn1
endequation

beginequation
 oint mathbfB cdot d mathbfa = mathbf0 labeleq:eqn2
endequation

beginalign
 abc labeleq:eqn3
endalign

enddocument

It uses

mathtools' newtagform to establish a new form of tag for equations and related environments.

A conditional to set the symbol. If inside an equation or align, the symbol is added, otherwise it's left out. This allows you to use eqref. It's not extensively tested, but works in the example provided.

If you want to remove the bold numbering from your reference, you can use the following:

enter image description here

documentclassbook

usepackagemathtools
usepackage[svgnames, dvipsnames, table, x11names]xcolor
usepackagepifont

definecolorocreRGB243,102,25 
%----------------------------------------------------------------------------------
% Change number equations with sections
%----------------------------------------------------------------------------------
usepackagechngcntr
counterwithinequationsection

makeatletter

renewcommandtheequationthesection-arabicequation
newcommandeqnumfmt%
 ifnumpdfstrcmp@currenvirequation=0
 bfseries
 else
 ifnumpdfstrcmp@currenviralign=0
 bfseries
 fi
 fi
newcommandeqnnumsymboltextcolorocrereflectboxding228

newtagformbbrackets% <name>
 [eqnumfmt]% Internal style
 (bgroup% Left bracket
 ifnumpdfstrcmp@currenvirequation=0
 eqnnumsymbol%
 else
 ifnumpdfstrcmp@currenviralign=0
 eqnnumsymbol%
 fi
 fi
 egroup)% Right bracket
makeatother
usetagformbbrackets

begindocument

See both~eqrefeq:eqn1 and~eqrefeq:eqn2. Also see~eqrefeq:eqn3.

beginequation
 oint mathbfE cdot d mathbfa = int rho , mathrmdv labeleq:eqn1
endequation

beginequation
 oint mathbfB cdot d mathbfa = mathbf0 labeleq:eqn2
endequation

beginalign
 abc labeleq:eqn3
endalign

enddocument

edited 7 hours ago

answered 8 hours ago

Werner

456k75 gold badges1019 silver badges1751 bronze badges

edited 7 hours ago

answered 8 hours ago

Werner

456k75 gold badges1019 silver badges1751 bronze badges

answered 8 hours ago

Werner

456k75 gold badges1019 silver badges1751 bronze badges

answered 8 hours ago

Werner

456k75 gold badges1019 silver badges1751 bronze badges

I've had my doubts. But if I use your code within my book the numbering starts from 1 which is the first chapter or from scratch? I think it starts from scratch and I should change from 0 to 1. Finally, I forgot that there was the command reflectbox. I wanted to ask you if you could do an additional edit to delete the bold in the text part that calls the equation.

– Sebastiano
8 hours ago

1

@Sebastiano: The equation numbering is section-equation, so if you don't have a section, it will be 0. If you do, it will be 1 or higher. Also remember that sections are number per-chapter; in other words, reset to 0 when you issue chapter.

– Werner
8 hours ago

My sincere and cordial thanks for your help and for those who appreciated my question in particular.

– Sebastiano
7 hours ago

add a comment |

I've had my doubts. But if I use your code within my book the numbering starts from 1 which is the first chapter or from scratch? I think it starts from scratch and I should change from 0 to 1. Finally, I forgot that there was the command reflectbox. I wanted to ask you if you could do an additional edit to delete the bold in the text part that calls the equation.

– Sebastiano
8 hours ago

1

@Sebastiano: The equation numbering is section-equation, so if you don't have a section, it will be 0. If you do, it will be 1 or higher. Also remember that sections are number per-chapter; in other words, reset to 0 when you issue chapter.

– Werner
8 hours ago

My sincere and cordial thanks for your help and for those who appreciated my question in particular.

– Sebastiano
7 hours ago

I've had my doubts. But if I use your code within my book the numbering starts from 1 which is the first chapter or from scratch? I think it starts from scratch and I should change from 0 to 1. Finally, I forgot that there was the command reflectbox. I wanted to ask you if you could do an additional edit to delete the bold in the text part that calls the equation.

– Sebastiano
8 hours ago

@Sebastiano: The equation numbering is section-equation, so if you don't have a section, it will be 0. If you do, it will be 1 or higher. Also remember that sections are number per-chapter; in other words, reset to 0 when you issue chapter.

– Werner
8 hours ago

My sincere and cordial thanks for your help and for those who appreciated my question in particular.

– Sebastiano
7 hours ago

add a comment |

documentclassbook
usepackagemathtools
usepackagenewtxtext
usepackagenewtxmath
PassOptionsToPackagesvgnames, dvipsnames, table, x11namesxcolor
usepackagetikz
usepackageclassico
usepackageadforn
definecolorocreRGB243,102,25
%----------------------------------------------------------------------------------
% Change number equations with sections
%----------------------------------------------------------------------------------
counterwithinequationsection%
renewcommandtheequationthesection-arabicequation
newtagformarrowtip[bfseriessffamily],textcolorIndianRed3Largeadforn42
usetagformarrowtip

begindocument

setcounterchapter2
setcountersection5
beginequation
oint mathbfE cdot d mathbfa = int rho , dv
endequation
beginequation
oint mathbfB cdot d mathbfa = mathbf0
endequation

enddocument

enter image description here

edited 6 hours ago

answered 7 hours ago

Bernard

183k7 gold badges83 silver badges216 bronze badges

This does include the entire tag, as-is, in the reference (when using eqref). Something the OP doesn't seem interested in.

– Werner
6 hours ago

@Werner: You're right (ahd I wouldn't be interested either), but one can play with cleveref to solve the problem.

– Bernard
6 hours ago

@Bernard Your proposal is also interesting and I vote for it. I thank you and everyone for your cooperation. I have two different codes. I will try them both :-). Thank you for everything. My sincere greetings and compliments for the Latin language :-)-

– Sebastiano
33 mins ago

add a comment |

documentclassbook
usepackagemathtools
usepackagenewtxtext
usepackagenewtxmath
PassOptionsToPackagesvgnames, dvipsnames, table, x11namesxcolor
usepackagetikz
usepackageclassico
usepackageadforn
definecolorocreRGB243,102,25
%----------------------------------------------------------------------------------
% Change number equations with sections
%----------------------------------------------------------------------------------
counterwithinequationsection%
renewcommandtheequationthesection-arabicequation
newtagformarrowtip[bfseriessffamily],textcolorIndianRed3Largeadforn42
usetagformarrowtip

begindocument

setcounterchapter2
setcountersection5
beginequation
oint mathbfE cdot d mathbfa = int rho , dv
endequation
beginequation
oint mathbfB cdot d mathbfa = mathbf0
endequation

enddocument

enter image description here

edited 6 hours ago

answered 7 hours ago

Bernard

183k7 gold badges83 silver badges216 bronze badges

This does include the entire tag, as-is, in the reference (when using eqref). Something the OP doesn't seem interested in.

– Werner
6 hours ago

@Werner: You're right (ahd I wouldn't be interested either), but one can play with cleveref to solve the problem.

– Bernard
6 hours ago

@Bernard Your proposal is also interesting and I vote for it. I thank you and everyone for your cooperation. I have two different codes. I will try them both :-). Thank you for everything. My sincere greetings and compliments for the Latin language :-)-

– Sebastiano
33 mins ago

add a comment |

documentclassbook
usepackagemathtools
usepackagenewtxtext
usepackagenewtxmath
PassOptionsToPackagesvgnames, dvipsnames, table, x11namesxcolor
usepackagetikz
usepackageclassico
usepackageadforn
definecolorocreRGB243,102,25
%----------------------------------------------------------------------------------
% Change number equations with sections
%----------------------------------------------------------------------------------
counterwithinequationsection%
renewcommandtheequationthesection-arabicequation
newtagformarrowtip[bfseriessffamily],textcolorIndianRed3Largeadforn42
usetagformarrowtip

begindocument

setcounterchapter2
setcountersection5
beginequation
oint mathbfE cdot d mathbfa = int rho , dv
endequation
beginequation
oint mathbfB cdot d mathbfa = mathbf0
endequation

enddocument

enter image description here

edited 6 hours ago

answered 7 hours ago

Bernard

183k7 gold badges83 silver badges216 bronze badges

documentclassbook
usepackagemathtools
usepackagenewtxtext
usepackagenewtxmath
PassOptionsToPackagesvgnames, dvipsnames, table, x11namesxcolor
usepackagetikz
usepackageclassico
usepackageadforn
definecolorocreRGB243,102,25
%----------------------------------------------------------------------------------
% Change number equations with sections
%----------------------------------------------------------------------------------
counterwithinequationsection%
renewcommandtheequationthesection-arabicequation
newtagformarrowtip[bfseriessffamily],textcolorIndianRed3Largeadforn42
usetagformarrowtip

begindocument

setcounterchapter2
setcountersection5
beginequation
oint mathbfE cdot d mathbfa = int rho , dv
endequation
beginequation
oint mathbfB cdot d mathbfa = mathbf0
endequation

enddocument

enter image description here

edited 6 hours ago

answered 7 hours ago

Bernard

183k7 gold badges83 silver badges216 bronze badges

edited 6 hours ago

answered 7 hours ago

Bernard

183k7 gold badges83 silver badges216 bronze badges

answered 7 hours ago

Bernard

183k7 gold badges83 silver badges216 bronze badges

answered 7 hours ago

Bernard

183k7 gold badges83 silver badges216 bronze badges

This does include the entire tag, as-is, in the reference (when using eqref). Something the OP doesn't seem interested in.

– Werner
6 hours ago

@Werner: You're right (ahd I wouldn't be interested either), but one can play with cleveref to solve the problem.

– Bernard
6 hours ago

@Bernard Your proposal is also interesting and I vote for it. I thank you and everyone for your cooperation. I have two different codes. I will try them both :-). Thank you for everything. My sincere greetings and compliments for the Latin language :-)-

– Sebastiano
33 mins ago

add a comment |

This does include the entire tag, as-is, in the reference (when using eqref). Something the OP doesn't seem interested in.

– Werner
6 hours ago

@Werner: You're right (ahd I wouldn't be interested either), but one can play with cleveref to solve the problem.

– Bernard
6 hours ago

@Bernard Your proposal is also interesting and I vote for it. I thank you and everyone for your cooperation. I have two different codes. I will try them both :-). Thank you for everything. My sincere greetings and compliments for the Latin language :-)-

– Sebastiano
33 mins ago

This does include the entire tag, as-is, in the reference (when using eqref). Something the OP doesn't seem interested in.

– Werner
6 hours ago

@Werner: You're right (ahd I wouldn't be interested either), but one can play with cleveref to solve the problem.

– Bernard
6 hours ago

@Bernard Your proposal is also interesting and I vote for it. I thank you and everyone for your cooperation. I have two different codes. I will try them both :-). Thank you for everything. My sincere greetings and compliments for the Latin language :-)-

– Sebastiano
33 mins ago

add a comment |

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