Ttyjukl

Why does processed meat contain preservatives, while canned fish needs not?

How to delegate to implementing class

Counterexample: a pair of linearly ordered sets that are isomorphic to subsets of the other, but not isomorphic between them

Reverse the word in a string with the same order in javascript

In gnome-terminal only 2 out of 3 zoom keys work

Pressure to defend the relevance of one's area of mathematics

Options leqno, reqno for documentclass or exist another option?

How to set the font color of quantity objects (Version 11.3 vs version 12)?

Confused by notation of atomic number Z and mass number A on periodic table of elements

Is there a way to get a compiler for the original B programming language?

Electric guitar: why such heavy pots?

What's the metal clinking sound at the end of credits in Avengers: Endgame?

Can a creature tell when it has been "Portented"?

Normal subgroup of even order whose nontrivial elements form a single conjugacy class is abelian

Please, smoke with good manners

Is it a satellite or aircraft?

When India mathematicians did know Euclid's Elements?

Unexpected email from Yorkshire Bank

Packing rectangles: Does rotation ever help?

What was the "glowing package" Pym was expecting?

Python "triplet" dictionary?

When and why did journal article titles become descriptive, rather than creatively allusive?

Feels like I am getting dragged in office politics

Can solid acids and bases have pH values? If not, how are they classified as acids or bases?

Options leqno, reqno for documentclass or exist another option?

aligning a multiline formula with the bullet of itemizeHow can I number a few equations togetherLeft aligning equations without align characterHow can I change the position of equation number locally if I am not using the amsmath package?List of equations, including equation contents and captionequation exceeds page width after changing document class from “article” to “beamer”Can't generate png with Error: Erroneous nesting of equation structuresHow continue a equation next lineAlign equations within one lineflalign, leqno and equations left aligned. Overlapping of equations and tags

1

I consider these simple MWE

documentclass[12pt,leqno]{article}

usepackage{amsmath}

begin{document}

begin{equation}

     x^n + y^n = z^n

end{equation}

end{document}

With the option leqno we know that LaTeX puts the progressive number of the equation on the extreme left. With the option reqno at the extreme right of the page.

documentclass[12pt,reqno]{article}

usepackage{amsmath}

begin{document}

begin{equation}

     E=mc^2

end{equation}

end{document}

But when I have, for example a code with align option, knowing that the number can be either on the first or second equation, how come the leqno option is not active and the number is always put on the right?

documentclass[12pt,leqno]{article}

usepackage{amsmath}

begin{document}

begin{align}

a &= b+c nonumber\

e &= f+g

end{align}

end{document}

1. How do I put the number of the equation between the two equations in the middle or at left or at right?


2. Are there only leqno and regno options with LaTeX? But is there, for example, the ceqno option, i.e. the possibility of placing the number next to the equation (at the centre to be clearer) or that it is always at the centre but in the middle of the two equations?

math-mode equations numbering align amsmath

share|improve this question

edited 48 mins ago

David Carlisle

502k4211491897

asked 1 hour ago

SebastianoSebastiano

11.8k42467

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  why do you say "how come the leqno option is not active and the number is always put on the right?" the equation number appears on the left when leqno is used.
  
  – David Carlisle
  1 hour ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @DavidCarlisle Why leqno is not active with align?
  
  – Sebastiano
  1 hour ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  it is active, you get the number on the left
  
  – David Carlisle
  57 mins ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  The code is in the question not the answer so I added the image for leqno to your answer, you only showed the default right number. (there is no regno option)
  
  – David Carlisle
  46 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @DavidCarlisle I have deleted my previous comment after your edit.
  
  – Sebastiano
  45 mins ago
  

  
  
  
  

add a comment | 

1

I consider these simple MWE

documentclass[12pt,leqno]{article}

usepackage{amsmath}

begin{document}

begin{equation}

     x^n + y^n = z^n

end{equation}

end{document}

With the option leqno we know that LaTeX puts the progressive number of the equation on the extreme left. With the option reqno at the extreme right of the page.

documentclass[12pt,reqno]{article}

usepackage{amsmath}

begin{document}

begin{equation}

     E=mc^2

end{equation}

end{document}

But when I have, for example a code with align option, knowing that the number can be either on the first or second equation, how come the leqno option is not active and the number is always put on the right?

documentclass[12pt,leqno]{article}

usepackage{amsmath}

begin{document}

begin{align}

a &= b+c nonumber\

e &= f+g

end{align}

end{document}

1. How do I put the number of the equation between the two equations in the middle or at left or at right?


2. Are there only leqno and regno options with LaTeX? But is there, for example, the ceqno option, i.e. the possibility of placing the number next to the equation (at the centre to be clearer) or that it is always at the centre but in the middle of the two equations?

math-mode equations numbering align amsmath

share|improve this question

edited 48 mins ago

David Carlisle

502k4211491897

asked 1 hour ago

SebastianoSebastiano

11.8k42467

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  why do you say "how come the leqno option is not active and the number is always put on the right?" the equation number appears on the left when leqno is used.
  
  – David Carlisle
  1 hour ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @DavidCarlisle Why leqno is not active with align?
  
  – Sebastiano
  1 hour ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  it is active, you get the number on the left
  
  – David Carlisle
  57 mins ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  The code is in the question not the answer so I added the image for leqno to your answer, you only showed the default right number. (there is no regno option)
  
  – David Carlisle
  46 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @DavidCarlisle I have deleted my previous comment after your edit.
  
  – Sebastiano
  45 mins ago
  

  
  
  
  

add a comment | 

I consider these simple MWE

documentclass[12pt,leqno]{article}

usepackage{amsmath}

begin{document}

begin{equation}

     x^n + y^n = z^n

end{equation}

end{document}

With the option leqno we know that LaTeX puts the progressive number of the equation on the extreme left. With the option reqno at the extreme right of the page.

documentclass[12pt,reqno]{article}

usepackage{amsmath}

begin{document}

begin{equation}

     E=mc^2

end{equation}

end{document}

But when I have, for example a code with align option, knowing that the number can be either on the first or second equation, how come the leqno option is not active and the number is always put on the right?

documentclass[12pt,leqno]{article}

usepackage{amsmath}

begin{document}

begin{align}

a &= b+c nonumber\

e &= f+g

end{align}

end{document}

1. How do I put the number of the equation between the two equations in the middle or at left or at right?


2. Are there only leqno and regno options with LaTeX? But is there, for example, the ceqno option, i.e. the possibility of placing the number next to the equation (at the centre to be clearer) or that it is always at the centre but in the middle of the two equations?

math-mode equations numbering align amsmath

share|improve this question

edited 48 mins ago

David Carlisle

502k4211491897

asked 1 hour ago

SebastianoSebastiano

11.8k42467

documentclass[12pt,leqno]{article}

usepackage{amsmath}

begin{document}

begin{equation}

     x^n + y^n = z^n

end{equation}

end{document}

documentclass[12pt,reqno]{article}

usepackage{amsmath}

begin{document}

begin{equation}

     E=mc^2

end{equation}

end{document}

documentclass[12pt,leqno]{article}

usepackage{amsmath}

begin{document}

begin{align}

a &= b+c nonumber\

e &= f+g

end{align}

end{document}

share|improve this question

edited 48 mins ago

David Carlisle

502k4211491897

asked 1 hour ago

SebastianoSebastiano

11.8k42467

share|improve this question

edited 48 mins ago

David Carlisle

502k4211491897

asked 1 hour ago

SebastianoSebastiano

11.8k42467

edited 48 mins ago

David Carlisle

502k4211491897

edited 48 mins ago

David Carlisle

502k4211491897

asked 1 hour ago

SebastianoSebastiano

11.8k42467

asked 1 hour ago

SebastianoSebastiano

11.8k42467

1 Answer
1

active

oldest

votes

3

If you want a single number for the display, use equation not align

Note that there is no reqno option, equation numbers on the right is the default.

documentclass[12pt,leqno]{article}

usepackage{amsmath}

begin{document}

begin{equation}

begin{split}

a &= b+c \

e &= f+g

end{split}

end{equation}

end{document}

share|improve this answer

edited 45 mins ago

answered 1 hour ago

David CarlisleDavid Carlisle

502k4211491897

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  But can the number (1) be placed closer to the two equations always in the middle?
  
  – Sebastiano
  1 hour ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Sebastiano equation numbers are always placed at the margin
  
  – David Carlisle
  56 mins ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Sebastiano if you really wanted to change the margins you could use a minipage for example
  
  – David Carlisle
  55 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I asked myself this question when I remember seeing a book of Physics in English that had the number of formulas nearby.
  
  – Sebastiano
  50 mins ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  if you surround the display with say begin{minipage}{.5textwidth} then the number is only moved half way across the page (although using a minipage has other issues) @Sebastiano
  
  – David Carlisle
  12 mins ago
  

  
  
  
  

 | 
show 2 more comments

Your Answer

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "85"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Sign up using Google

Sign up using Facebook

Sign up using Email and Password

Post as a guest

Name

Email

Required, but never shown

StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2ftex.stackexchange.com%2fquestions%2f488141%2foptions-leqno-reqno-for-documentclass-or-exist-another-option%23new-answer', 'question_page');
}
);

Post as a guest

Name

Email

Required, but never shown

3

If you want a single number for the display, use equation not align

Note that there is no reqno option, equation numbers on the right is the default.

documentclass[12pt,leqno]{article}

usepackage{amsmath}

begin{document}

begin{equation}

begin{split}

a &= b+c \

e &= f+g

end{split}

end{equation}

end{document}

share|improve this answer

edited 45 mins ago

answered 1 hour ago

David CarlisleDavid Carlisle

502k4211491897

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  But can the number (1) be placed closer to the two equations always in the middle?
  
  – Sebastiano
  1 hour ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Sebastiano equation numbers are always placed at the margin
  
  – David Carlisle
  56 mins ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Sebastiano if you really wanted to change the margins you could use a minipage for example
  
  – David Carlisle
  55 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I asked myself this question when I remember seeing a book of Physics in English that had the number of formulas nearby.
  
  – Sebastiano
  50 mins ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  if you surround the display with say begin{minipage}{.5textwidth} then the number is only moved half way across the page (although using a minipage has other issues) @Sebastiano
  
  – David Carlisle
  12 mins ago
  

  
  
  
  

 | 
show 2 more comments

3

If you want a single number for the display, use equation not align

Note that there is no reqno option, equation numbers on the right is the default.

documentclass[12pt,leqno]{article}

usepackage{amsmath}

begin{document}

begin{equation}

begin{split}

a &= b+c \

e &= f+g

end{split}

end{equation}

end{document}

share|improve this answer

edited 45 mins ago

answered 1 hour ago

David CarlisleDavid Carlisle

502k4211491897

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  But can the number (1) be placed closer to the two equations always in the middle?
  
  – Sebastiano
  1 hour ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Sebastiano equation numbers are always placed at the margin
  
  – David Carlisle
  56 mins ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Sebastiano if you really wanted to change the margins you could use a minipage for example
  
  – David Carlisle
  55 mins ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I asked myself this question when I remember seeing a book of Physics in English that had the number of formulas nearby.
  
  – Sebastiano
  50 mins ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  if you surround the display with say begin{minipage}{.5textwidth} then the number is only moved half way across the page (although using a minipage has other issues) @Sebastiano
  
  – David Carlisle
  12 mins ago
  

  
  
  
  

 | 
show 2 more comments

If you want a single number for the display, use equation not align

Note that there is no reqno option, equation numbers on the right is the default.

documentclass[12pt,leqno]{article}

usepackage{amsmath}

begin{document}

begin{equation}

begin{split}

a &= b+c \

e &= f+g

end{split}

end{equation}

end{document}

share|improve this answer

edited 45 mins ago

answered 1 hour ago

David CarlisleDavid Carlisle

502k4211491897

documentclass[12pt,leqno]{article}

usepackage{amsmath}

begin{document}

begin{equation}

begin{split}

a &= b+c \

e &= f+g

end{split}

end{equation}

end{document}

share|improve this answer

edited 45 mins ago

answered 1 hour ago

David CarlisleDavid Carlisle

502k4211491897

answered 1 hour ago

David CarlisleDavid Carlisle

502k4211491897

answered 1 hour ago

David CarlisleDavid Carlisle

502k4211491897