How to save space when writing equations with cases? Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern)tables with column width that depends on the width of table entriesTwo columns of equations, aligned and just one number per columnHow to adjust the blank space between the top of the left curly brace and the contents?How to align text to the right in math mode?flalign numberingTables: Missing $ insertedHow to properly format a proof/explanation with multiple points of alignment?Unwanted space with label in subfigure (subcaption) environmentHow can I left-align each cell in an equation containing math symbols?How do I get something into a rectangle without space for non-existent descenders?

How often does castling occur in grandmaster games?

How does light 'choose' between wave and particle behaviour?

Trademark violation for app?

What makes a man succeed?

What are the discoveries that have been possible with the rejection of positivism?

If Windows 7 doesn't support WSL, then what is "Subsystem for UNIX-based Applications"?

Why does it sometimes sound good to play a grace note as a lead in to a note in a melody?

How much damage would a cupful of neutron star matter do to the Earth?

Does the Mueller report show a conspiracy between Russia and the Trump Campaign?

Why are vacuum tubes still used in amateur radios?

Why can't I install Tomboy in Ubuntu Mate 19.04?

Why do early math courses focus on the cross sections of a cone and not on other 3D objects?

Project Euler #1 in C++

What initially awakened the Balrog?

Girl Hackers - Logic Puzzle

Did any compiler fully use 80-bit floating point?

An adverb for when you're not exaggerating

Central Vacuuming: Is it worth it, and how does it compare to normal vacuuming?

What do you call the main part of a joke?

What's the point of the test set?

Putting class ranking in CV, but against dept guidelines

Is CEO the "profession" with the most psychopaths?

What order were files/directories output in dir?

Intuitive explanation of the rank-nullity theorem



How to save space when writing equations with cases?



Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern)tables with column width that depends on the width of table entriesTwo columns of equations, aligned and just one number per columnHow to adjust the blank space between the top of the left curly brace and the contents?How to align text to the right in math mode?flalign numberingTables: Missing $ insertedHow to properly format a proof/explanation with multiple points of alignment?Unwanted space with label in subfigure (subcaption) environmentHow can I left-align each cell in an equation containing math symbols?How do I get something into a rectangle without space for non-existent descenders?










1















I am writing in IEEE double column environment. I have some equations with cases. For example, this equation seems to have too much space after the brace and also before and after the commas.



enter image description here



I was using the array environment which seems to cause those large spacing. I still prefer to have some independent control over the alignment of the three parts of the equation, since in some cases for each column, the length may be quite different, and I may choose to center, left, or right align for each column. What would be a good way to make those spacings smaller but still have control over the alignment?



The code I used for the equation is



beginequation
theta_pk=left{ beginarrayccc
omega t+alpha+beta & , & n=1,2,3,4,5,6,ldots\
-omega t-alpha-beta & , & n=7,8,9,10,11,12,ldots
endarrayright.
endequation









share|improve this question

















  • 5





    There exists an environment for that: cases.

    – marmot
    7 hours ago















1















I am writing in IEEE double column environment. I have some equations with cases. For example, this equation seems to have too much space after the brace and also before and after the commas.



enter image description here



I was using the array environment which seems to cause those large spacing. I still prefer to have some independent control over the alignment of the three parts of the equation, since in some cases for each column, the length may be quite different, and I may choose to center, left, or right align for each column. What would be a good way to make those spacings smaller but still have control over the alignment?



The code I used for the equation is



beginequation
theta_pk=left{ beginarrayccc
omega t+alpha+beta & , & n=1,2,3,4,5,6,ldots\
-omega t-alpha-beta & , & n=7,8,9,10,11,12,ldots
endarrayright.
endequation









share|improve this question

















  • 5





    There exists an environment for that: cases.

    – marmot
    7 hours ago













1












1








1








I am writing in IEEE double column environment. I have some equations with cases. For example, this equation seems to have too much space after the brace and also before and after the commas.



enter image description here



I was using the array environment which seems to cause those large spacing. I still prefer to have some independent control over the alignment of the three parts of the equation, since in some cases for each column, the length may be quite different, and I may choose to center, left, or right align for each column. What would be a good way to make those spacings smaller but still have control over the alignment?



The code I used for the equation is



beginequation
theta_pk=left{ beginarrayccc
omega t+alpha+beta & , & n=1,2,3,4,5,6,ldots\
-omega t-alpha-beta & , & n=7,8,9,10,11,12,ldots
endarrayright.
endequation









share|improve this question














I am writing in IEEE double column environment. I have some equations with cases. For example, this equation seems to have too much space after the brace and also before and after the commas.



enter image description here



I was using the array environment which seems to cause those large spacing. I still prefer to have some independent control over the alignment of the three parts of the equation, since in some cases for each column, the length may be quite different, and I may choose to center, left, or right align for each column. What would be a good way to make those spacings smaller but still have control over the alignment?



The code I used for the equation is



beginequation
theta_pk=left{ beginarrayccc
omega t+alpha+beta & , & n=1,2,3,4,5,6,ldots\
-omega t-alpha-beta & , & n=7,8,9,10,11,12,ldots
endarrayright.
endequation






math-mode spacing






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked 7 hours ago









nanjunnanjun

14016




14016







  • 5





    There exists an environment for that: cases.

    – marmot
    7 hours ago












  • 5





    There exists an environment for that: cases.

    – marmot
    7 hours ago







5




5





There exists an environment for that: cases.

– marmot
7 hours ago





There exists an environment for that: cases.

– marmot
7 hours ago










2 Answers
2






active

oldest

votes


















4














as mentioned @marmot in comment, cases from amsmath is right toool for what you like obtain:



enter image description here



documentclassIEEEtran
usepackageamsmath

usepackagelipsum % for dummy text

begindocument
lipsum[1]
beginequation
theta_pk =
begincases
omega t+alpha+beta & , n=1,2,3,4,5,6,ldots\
-omega t-alpha-beta & , n=7,8,9,10,11,12,ldots
endcases
endequation
lipsum[2-4]
enddocument





share|improve this answer























  • Is it possible to reduce the space before the commas if I have slightly longer equations to fit in the column?

    – nanjun
    7 hours ago






  • 1





    Great answer!! According to AMS, I think that the commas have to start just after the expression e.g. omega t+alpha+beta, and not omega t+alpha+beta&,, and at the end of the line should be a comma e.g. ldots,.

    – manooooh
    7 hours ago











  • @manooooh -- "According to AMS ... have to" is a bit of a stretch. The traditional location of the commas is indeed at the end of the initial segment of a line, not after the &. That is what is shown in the user guide (texdoc amsldoc).

    – barbara beeton
    59 mins ago


















1














A variant, with the fleqn environment from nccmath. I improvedged the alignment in the first column of the cases environment, using a phantom — sign in the first row.



You also can save some space – to a certain extent, with the mathrlap command from mathtools (which loads amsmath). I didn't need it here.



documentclassIEEEtran
usepackageamsmath, nccmath

usepackagelipsum % for dummy text

begindocument

lipsum[1]
beginfleqn
beginequation
theta_pk =
begincases
phantom-omega t+alpha+beta, & n=1,2,3,4,5,6,ldots\
-omega t-alpha-beta, & n=7,8,9,10,11,12,ldots
endcases
endequation
endfleqn
lipsum[2-4]

enddocument


enter image description here






share|improve this answer























  • What's the purpose of fleqn? I see no reason for it.

    – egreg
    6 hours ago











  • @egreg: Inside this environment, the equations are flushleft, while being aligned, gathered, &c. This can save some space.

    – Bernard
    6 hours ago












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


















StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2ftex.stackexchange.com%2fquestions%2f485658%2fhow-to-save-space-when-writing-equations-with-cases%23new-answer', 'question_page');

);

Post as a guest















Required, but never shown

























2 Answers
2






active

oldest

votes








2 Answers
2






active

oldest

votes









active

oldest

votes






active

oldest

votes









4














as mentioned @marmot in comment, cases from amsmath is right toool for what you like obtain:



enter image description here



documentclassIEEEtran
usepackageamsmath

usepackagelipsum % for dummy text

begindocument
lipsum[1]
beginequation
theta_pk =
begincases
omega t+alpha+beta & , n=1,2,3,4,5,6,ldots\
-omega t-alpha-beta & , n=7,8,9,10,11,12,ldots
endcases
endequation
lipsum[2-4]
enddocument





share|improve this answer























  • Is it possible to reduce the space before the commas if I have slightly longer equations to fit in the column?

    – nanjun
    7 hours ago






  • 1





    Great answer!! According to AMS, I think that the commas have to start just after the expression e.g. omega t+alpha+beta, and not omega t+alpha+beta&,, and at the end of the line should be a comma e.g. ldots,.

    – manooooh
    7 hours ago











  • @manooooh -- "According to AMS ... have to" is a bit of a stretch. The traditional location of the commas is indeed at the end of the initial segment of a line, not after the &. That is what is shown in the user guide (texdoc amsldoc).

    – barbara beeton
    59 mins ago















4














as mentioned @marmot in comment, cases from amsmath is right toool for what you like obtain:



enter image description here



documentclassIEEEtran
usepackageamsmath

usepackagelipsum % for dummy text

begindocument
lipsum[1]
beginequation
theta_pk =
begincases
omega t+alpha+beta & , n=1,2,3,4,5,6,ldots\
-omega t-alpha-beta & , n=7,8,9,10,11,12,ldots
endcases
endequation
lipsum[2-4]
enddocument





share|improve this answer























  • Is it possible to reduce the space before the commas if I have slightly longer equations to fit in the column?

    – nanjun
    7 hours ago






  • 1





    Great answer!! According to AMS, I think that the commas have to start just after the expression e.g. omega t+alpha+beta, and not omega t+alpha+beta&,, and at the end of the line should be a comma e.g. ldots,.

    – manooooh
    7 hours ago











  • @manooooh -- "According to AMS ... have to" is a bit of a stretch. The traditional location of the commas is indeed at the end of the initial segment of a line, not after the &. That is what is shown in the user guide (texdoc amsldoc).

    – barbara beeton
    59 mins ago













4












4








4







as mentioned @marmot in comment, cases from amsmath is right toool for what you like obtain:



enter image description here



documentclassIEEEtran
usepackageamsmath

usepackagelipsum % for dummy text

begindocument
lipsum[1]
beginequation
theta_pk =
begincases
omega t+alpha+beta & , n=1,2,3,4,5,6,ldots\
-omega t-alpha-beta & , n=7,8,9,10,11,12,ldots
endcases
endequation
lipsum[2-4]
enddocument





share|improve this answer













as mentioned @marmot in comment, cases from amsmath is right toool for what you like obtain:



enter image description here



documentclassIEEEtran
usepackageamsmath

usepackagelipsum % for dummy text

begindocument
lipsum[1]
beginequation
theta_pk =
begincases
omega t+alpha+beta & , n=1,2,3,4,5,6,ldots\
-omega t-alpha-beta & , n=7,8,9,10,11,12,ldots
endcases
endequation
lipsum[2-4]
enddocument






share|improve this answer












share|improve this answer



share|improve this answer










answered 7 hours ago









ZarkoZarko

130k869169




130k869169












  • Is it possible to reduce the space before the commas if I have slightly longer equations to fit in the column?

    – nanjun
    7 hours ago






  • 1





    Great answer!! According to AMS, I think that the commas have to start just after the expression e.g. omega t+alpha+beta, and not omega t+alpha+beta&,, and at the end of the line should be a comma e.g. ldots,.

    – manooooh
    7 hours ago











  • @manooooh -- "According to AMS ... have to" is a bit of a stretch. The traditional location of the commas is indeed at the end of the initial segment of a line, not after the &. That is what is shown in the user guide (texdoc amsldoc).

    – barbara beeton
    59 mins ago

















  • Is it possible to reduce the space before the commas if I have slightly longer equations to fit in the column?

    – nanjun
    7 hours ago






  • 1





    Great answer!! According to AMS, I think that the commas have to start just after the expression e.g. omega t+alpha+beta, and not omega t+alpha+beta&,, and at the end of the line should be a comma e.g. ldots,.

    – manooooh
    7 hours ago











  • @manooooh -- "According to AMS ... have to" is a bit of a stretch. The traditional location of the commas is indeed at the end of the initial segment of a line, not after the &. That is what is shown in the user guide (texdoc amsldoc).

    – barbara beeton
    59 mins ago
















Is it possible to reduce the space before the commas if I have slightly longer equations to fit in the column?

– nanjun
7 hours ago





Is it possible to reduce the space before the commas if I have slightly longer equations to fit in the column?

– nanjun
7 hours ago




1




1





Great answer!! According to AMS, I think that the commas have to start just after the expression e.g. omega t+alpha+beta, and not omega t+alpha+beta&,, and at the end of the line should be a comma e.g. ldots,.

– manooooh
7 hours ago





Great answer!! According to AMS, I think that the commas have to start just after the expression e.g. omega t+alpha+beta, and not omega t+alpha+beta&,, and at the end of the line should be a comma e.g. ldots,.

– manooooh
7 hours ago













@manooooh -- "According to AMS ... have to" is a bit of a stretch. The traditional location of the commas is indeed at the end of the initial segment of a line, not after the &. That is what is shown in the user guide (texdoc amsldoc).

– barbara beeton
59 mins ago





@manooooh -- "According to AMS ... have to" is a bit of a stretch. The traditional location of the commas is indeed at the end of the initial segment of a line, not after the &. That is what is shown in the user guide (texdoc amsldoc).

– barbara beeton
59 mins ago











1














A variant, with the fleqn environment from nccmath. I improvedged the alignment in the first column of the cases environment, using a phantom — sign in the first row.



You also can save some space – to a certain extent, with the mathrlap command from mathtools (which loads amsmath). I didn't need it here.



documentclassIEEEtran
usepackageamsmath, nccmath

usepackagelipsum % for dummy text

begindocument

lipsum[1]
beginfleqn
beginequation
theta_pk =
begincases
phantom-omega t+alpha+beta, & n=1,2,3,4,5,6,ldots\
-omega t-alpha-beta, & n=7,8,9,10,11,12,ldots
endcases
endequation
endfleqn
lipsum[2-4]

enddocument


enter image description here






share|improve this answer























  • What's the purpose of fleqn? I see no reason for it.

    – egreg
    6 hours ago











  • @egreg: Inside this environment, the equations are flushleft, while being aligned, gathered, &c. This can save some space.

    – Bernard
    6 hours ago
















1














A variant, with the fleqn environment from nccmath. I improvedged the alignment in the first column of the cases environment, using a phantom — sign in the first row.



You also can save some space – to a certain extent, with the mathrlap command from mathtools (which loads amsmath). I didn't need it here.



documentclassIEEEtran
usepackageamsmath, nccmath

usepackagelipsum % for dummy text

begindocument

lipsum[1]
beginfleqn
beginequation
theta_pk =
begincases
phantom-omega t+alpha+beta, & n=1,2,3,4,5,6,ldots\
-omega t-alpha-beta, & n=7,8,9,10,11,12,ldots
endcases
endequation
endfleqn
lipsum[2-4]

enddocument


enter image description here






share|improve this answer























  • What's the purpose of fleqn? I see no reason for it.

    – egreg
    6 hours ago











  • @egreg: Inside this environment, the equations are flushleft, while being aligned, gathered, &c. This can save some space.

    – Bernard
    6 hours ago














1












1








1







A variant, with the fleqn environment from nccmath. I improvedged the alignment in the first column of the cases environment, using a phantom — sign in the first row.



You also can save some space – to a certain extent, with the mathrlap command from mathtools (which loads amsmath). I didn't need it here.



documentclassIEEEtran
usepackageamsmath, nccmath

usepackagelipsum % for dummy text

begindocument

lipsum[1]
beginfleqn
beginequation
theta_pk =
begincases
phantom-omega t+alpha+beta, & n=1,2,3,4,5,6,ldots\
-omega t-alpha-beta, & n=7,8,9,10,11,12,ldots
endcases
endequation
endfleqn
lipsum[2-4]

enddocument


enter image description here






share|improve this answer













A variant, with the fleqn environment from nccmath. I improvedged the alignment in the first column of the cases environment, using a phantom — sign in the first row.



You also can save some space – to a certain extent, with the mathrlap command from mathtools (which loads amsmath). I didn't need it here.



documentclassIEEEtran
usepackageamsmath, nccmath

usepackagelipsum % for dummy text

begindocument

lipsum[1]
beginfleqn
beginequation
theta_pk =
begincases
phantom-omega t+alpha+beta, & n=1,2,3,4,5,6,ldots\
-omega t-alpha-beta, & n=7,8,9,10,11,12,ldots
endcases
endequation
endfleqn
lipsum[2-4]

enddocument


enter image description here







share|improve this answer












share|improve this answer



share|improve this answer










answered 6 hours ago









BernardBernard

176k778210




176k778210












  • What's the purpose of fleqn? I see no reason for it.

    – egreg
    6 hours ago











  • @egreg: Inside this environment, the equations are flushleft, while being aligned, gathered, &c. This can save some space.

    – Bernard
    6 hours ago


















  • What's the purpose of fleqn? I see no reason for it.

    – egreg
    6 hours ago











  • @egreg: Inside this environment, the equations are flushleft, while being aligned, gathered, &c. This can save some space.

    – Bernard
    6 hours ago

















What's the purpose of fleqn? I see no reason for it.

– egreg
6 hours ago





What's the purpose of fleqn? I see no reason for it.

– egreg
6 hours ago













@egreg: Inside this environment, the equations are flushleft, while being aligned, gathered, &c. This can save some space.

– Bernard
6 hours ago






@egreg: Inside this environment, the equations are flushleft, while being aligned, gathered, &c. This can save some space.

– Bernard
6 hours ago


















draft saved

draft discarded
















































Thanks for contributing an answer to TeX - LaTeX Stack Exchange!


  • Please be sure to answer the question. Provide details and share your research!

But avoid


  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.

To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2ftex.stackexchange.com%2fquestions%2f485658%2fhow-to-save-space-when-writing-equations-with-cases%23new-answer', 'question_page');

);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







Popular posts from this blog

Oświęcim Innehåll Historia | Källor | Externa länkar | Navigeringsmeny50°2′18″N 19°13′17″Ö / 50.03833°N 19.22139°Ö / 50.03833; 19.2213950°2′18″N 19°13′17″Ö / 50.03833°N 19.22139°Ö / 50.03833; 19.221393089658Nordisk familjebok, AuschwitzInsidan tro och existensJewish Community i OświęcimAuschwitz Jewish Center: MuseumAuschwitz Jewish Center

Valle di Casies Indice Geografia fisica | Origini del nome | Storia | Società | Amministrazione | Sport | Note | Bibliografia | Voci correlate | Altri progetti | Collegamenti esterni | Menu di navigazione46°46′N 12°11′E / 46.766667°N 12.183333°E46.766667; 12.183333 (Valle di Casies)46°46′N 12°11′E / 46.766667°N 12.183333°E46.766667; 12.183333 (Valle di Casies)Sito istituzionaleAstat Censimento della popolazione 2011 - Determinazione della consistenza dei tre gruppi linguistici della Provincia Autonoma di Bolzano-Alto Adige - giugno 2012Numeri e fattiValle di CasiesDato IstatTabella dei gradi/giorno dei Comuni italiani raggruppati per Regione e Provincia26 agosto 1993, n. 412Heraldry of the World: GsiesStatistiche I.StatValCasies.comWikimedia CommonsWikimedia CommonsValle di CasiesSito ufficialeValle di CasiesMM14870458910042978-6

Typsetting diagram chases (with TikZ?) Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)How to define the default vertical distance between nodes?Draw edge on arcNumerical conditional within tikz keys?TikZ: Drawing an arc from an intersection to an intersectionDrawing rectilinear curves in Tikz, aka an Etch-a-Sketch drawingLine up nested tikz enviroments or how to get rid of themHow to place nodes in an absolute coordinate system in tikzCommutative diagram with curve connecting between nodesTikz with standalone: pinning tikz coordinates to page cmDrawing a Decision Diagram with Tikz and layout manager