Double limits place beneath integral sign, how?

up vote
1
down vote

favorite

How do I write multiple lines beneath the integral sign?

MWE:

 documentclassarticle
 usepackageamsmath

 begindocument

 beginequation
 intmathcalDphi(x)=int mathcalDphi_1(textbfx)
 int mathcalDphi_2(textbfx)
 int_phi(x^0_1,textbfx)=phi_1(textbfx),
 phi(x^0_2,textbfx)=phi_2(textbfx)
 mathcalDphi(x)
 endequation

 enddocument

I would like the output to be as below (highlighted):

enter image description here

edited 27 mins ago

Thevesh Theva

32011

asked 1 hour ago

jowadul kader

132

add a commentÂ |Â

up vote
1
down vote

favorite

How do I write multiple lines beneath the integral sign?

MWE:

 documentclassarticle
 usepackageamsmath

 begindocument

 beginequation
 intmathcalDphi(x)=int mathcalDphi_1(textbfx)
 int mathcalDphi_2(textbfx)
 int_phi(x^0_1,textbfx)=phi_1(textbfx),
 phi(x^0_2,textbfx)=phi_2(textbfx)
 mathcalDphi(x)
 endequation

 enddocument

I would like the output to be as below (highlighted):

enter image description here

edited 27 mins ago

Thevesh Theva

32011

asked 1 hour ago

jowadul kader

132

add a commentÂ |Â

up vote
1
down vote

favorite

How do I write multiple lines beneath the integral sign?

MWE:

 documentclassarticle
 usepackageamsmath

 begindocument

 beginequation
 intmathcalDphi(x)=int mathcalDphi_1(textbfx)
 int mathcalDphi_2(textbfx)
 int_phi(x^0_1,textbfx)=phi_1(textbfx),
 phi(x^0_2,textbfx)=phi_2(textbfx)
 mathcalDphi(x)
 endequation

 enddocument

I would like the output to be as below (highlighted):

enter image description here

edited 27 mins ago

Thevesh Theva

32011

asked 1 hour ago

jowadul kader

132

How do I write multiple lines beneath the integral sign?

MWE:

 documentclassarticle
 usepackageamsmath

 begindocument

 beginequation
 intmathcalDphi(x)=int mathcalDphi_1(textbfx)
 int mathcalDphi_2(textbfx)
 int_phi(x^0_1,textbfx)=phi_1(textbfx),
 phi(x^0_2,textbfx)=phi_2(textbfx)
 mathcalDphi(x)
 endequation

 enddocument

I would like the output to be as below (highlighted):

enter image description here

math-mode equations

edited 27 mins ago

Thevesh Theva

32011

asked 1 hour ago

jowadul kader

132

edited 27 mins ago

Thevesh Theva

32011

asked 1 hour ago

jowadul kader

132

edited 27 mins ago

Thevesh Theva

32011

edited 27 mins ago

Thevesh Theva

32011

edited 27 mins ago

Thevesh Theva

32011

asked 1 hour ago

jowadul kader

132

asked 1 hour ago

jowadul kader

132

asked 1 hour ago

jowadul kader

132

add a commentÂ |Â

4 Answers
4

active

oldest

votes

up vote
0
down vote

accepted

By making use of the substack command (requires the amsmath package):

undersetsubstackphi(x_1^0,x) = phi_1(x) \ phi(x_2^0,x)= phi_2(x)int

Some additional pointers:

Since you're using mathcalD fairly often, I would advise declaring a new command with newcommandDensuremathmathcalD. Then you can simply use D every time you need it. Makes your code far more readable.

Put tag9.16 at the end of the line to tag the equation as (9.16), as per the image.

Your code for phi(x^0_2,textbfx) produces parentheses which are not big enough. You should instead use left( right) to have them correctly sized.

You should not use textbfx to indicate the vector x. Instead, use vecx (which puts an arrow above the x). If you want to change the output of vecx to bold text instead, use renewcommandvecmathbf.

All these suggestions plus the original answer are incorporated here:

newcommandDensuremathmathcalD
renewcommandvecmathbf

beginequation 
intDphi(x)=
int Dphi_1(vecx) 
int Dphi_2(vecx) 
intlimits_substackphileft(x_1^0,vecxright) = phi_1(vecx) \ phileft(x_2^0,vecxright)= phi_2(vecx) Dphi(x) tag9.16
endequation

This gives the desired output:

enter image description here

edited 1 min ago

answered 1 hour ago

Thevesh Theva

32011

thank you very much sir.;)
â€“Â jowadul kader
1 hour ago

@campa I kind of agree re the brackets, but I'll leave it to OP's tastes. As for textbf, I agree that it's better to redefine the vec command instead; I'll edit that into my answer in a while.
â€“Â Thevesh Theva
54 mins ago

2

underset? Oh, no!
â€“Â egreg
43 mins ago

2

I believe it's far more idiomatic to write intlimits_... than underset...int.
â€“Â Mico
42 mins ago

1

I don't think it's correct to claim that the some of the parentheses in the terms below the int symbol have to be enlarged. The basic size does just fine. And, it is not necessary to switch from an equation environment to an equation* environment in order to use tag. That said, I don't think that reproducing a specific equation number is part of the OP's stated objectives.
â€“Â Mico
20 mins ago

Â |Â
show 2 more comments

up vote
2
down vote

In my opinion, it looks nicer at the bottom right side of the integral. Anyway, here are 3 possibilies:

documentclassarticle

usepackagemathtools
begindocument

beginequation
intmathcalDphi(x)=int mathcalDphi_1(textbfx) int mathcalDphi_2(textbfx) int_substackphi(x^0_1,textbfx)=phi_1(textbfx),\ phi(x^0_2,textbfx)=phi_2(textbfx)strut mathcalDphi(x) 
endequation
beginequation
intmathcalDphi(x)=int mathcalDphi_1(textbfx) int mathcalDphi_2(textbfx) int_mathrlapsubstackmathstrut\phi(x^0_1,textbfx)=phi_1(textbfx),\ phi(x^0_2,textbfx)=phi_2(textbfx)strut; mathcalDphi(x)
endequation
beginequation
intmathcalDphi(x)=int mathcalDphi_1(textbfx) int mathcalDphi_2(textbfx) smashoperator int_substackphi(x^0_1,textbfx)=phi_1(textbfx),\ phi(x^0_2,textbfx)=phi_2(textbfx)strut mathcalDphi(x)
endequation

enddocument

enter image description here

answered 1 hour ago

Bernard

157k764190

add a commentÂ |Â

up vote
1
down vote

Here's a variant on @Bernard's third equation, using smashoperator[r]... instead of smashoperator....

Note that I've reduced the distance between the int and mathcalD terms slightly, by inserting ! ("negative thinspace") directives. I've also replaced textbfx with mathbfx.

enter image description here

documentclassarticle
usepackagemathtools % for smashoperator macro
begindocument
beginequation
 int! mathcalDphi(x)=
 int! mathcalDphi_1(mathbfx)
 int! mathcalDphi_2(mathbfx)
 smashoperator[r]intlimits_substack%
 phi(x^0_1,mathbfx)=phi_1(mathbfx),\
 phi(x^0_2,mathbfx)=phi_2(mathbfx)hfill
 ! mathcalDphi(x)
endequation
enddocument

answered 49 mins ago

Mico

265k30357736

add a commentÂ |Â

up vote
1
down vote

My proposal is to back up a little, but not too much as with smashoperator:

documentclassarticle
usepackageamsmath

begindocument

beginequation
int mathcalDphi(x)=
int mathcalDphi_1(mathbfx)
int mathcalDphi_2(mathbfx)
intlimits_scriptscriptstylemspace-12mu
 beginsubarrayl
 phi(x^0_1,mathbfx)=phi_1(mathbfx),\
 phi(x^0_2,mathbfx)=phi_2(mathbfx)
 endsubarraymspace-24mu
 mathcalDphi(x)
endequation

enddocument

The important part is intlimits so the condition is placed below the integral sign. The subarray environment is similar to substack, but it takes an argument for the alignment of the rows.

enter image description here

answered 34 mins ago

egreg

687k8418313078

add a commentÂ |Â

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Name

4 Answers
4

active

oldest

votes

4 Answers
4

active

oldest

votes

up vote
0
down vote

accepted

By making use of the substack command (requires the amsmath package):

undersetsubstackphi(x_1^0,x) = phi_1(x) \ phi(x_2^0,x)= phi_2(x)int

Some additional pointers:

Since you're using mathcalD fairly often, I would advise declaring a new command with newcommandDensuremathmathcalD. Then you can simply use D every time you need it. Makes your code far more readable.

Put tag9.16 at the end of the line to tag the equation as (9.16), as per the image.

Your code for phi(x^0_2,textbfx) produces parentheses which are not big enough. You should instead use left( right) to have them correctly sized.

You should not use textbfx to indicate the vector x. Instead, use vecx (which puts an arrow above the x). If you want to change the output of vecx to bold text instead, use renewcommandvecmathbf.

All these suggestions plus the original answer are incorporated here:

newcommandDensuremathmathcalD
renewcommandvecmathbf

beginequation 
intDphi(x)=
int Dphi_1(vecx) 
int Dphi_2(vecx) 
intlimits_substackphileft(x_1^0,vecxright) = phi_1(vecx) \ phileft(x_2^0,vecxright)= phi_2(vecx) Dphi(x) tag9.16
endequation

This gives the desired output:

enter image description here

edited 1 min ago

answered 1 hour ago

Thevesh Theva

32011

thank you very much sir.;)
â€“Â jowadul kader
1 hour ago

@campa I kind of agree re the brackets, but I'll leave it to OP's tastes. As for textbf, I agree that it's better to redefine the vec command instead; I'll edit that into my answer in a while.
â€“Â Thevesh Theva
54 mins ago

2

underset? Oh, no!
â€“Â egreg
43 mins ago

2

I believe it's far more idiomatic to write intlimits_... than underset...int.
â€“Â Mico
42 mins ago

1

I don't think it's correct to claim that the some of the parentheses in the terms below the int symbol have to be enlarged. The basic size does just fine. And, it is not necessary to switch from an equation environment to an equation* environment in order to use tag. That said, I don't think that reproducing a specific equation number is part of the OP's stated objectives.
â€“Â Mico
20 mins ago

Â |Â
show 2 more comments

up vote
0
down vote

accepted

By making use of the substack command (requires the amsmath package):

undersetsubstackphi(x_1^0,x) = phi_1(x) \ phi(x_2^0,x)= phi_2(x)int

Some additional pointers:

Since you're using mathcalD fairly often, I would advise declaring a new command with newcommandDensuremathmathcalD. Then you can simply use D every time you need it. Makes your code far more readable.

Put tag9.16 at the end of the line to tag the equation as (9.16), as per the image.

Your code for phi(x^0_2,textbfx) produces parentheses which are not big enough. You should instead use left( right) to have them correctly sized.

You should not use textbfx to indicate the vector x. Instead, use vecx (which puts an arrow above the x). If you want to change the output of vecx to bold text instead, use renewcommandvecmathbf.

All these suggestions plus the original answer are incorporated here:

newcommandDensuremathmathcalD
renewcommandvecmathbf

beginequation 
intDphi(x)=
int Dphi_1(vecx) 
int Dphi_2(vecx) 
intlimits_substackphileft(x_1^0,vecxright) = phi_1(vecx) \ phileft(x_2^0,vecxright)= phi_2(vecx) Dphi(x) tag9.16
endequation

This gives the desired output:

enter image description here

edited 1 min ago

answered 1 hour ago

Thevesh Theva

32011

thank you very much sir.;)
â€“Â jowadul kader
1 hour ago

@campa I kind of agree re the brackets, but I'll leave it to OP's tastes. As for textbf, I agree that it's better to redefine the vec command instead; I'll edit that into my answer in a while.
â€“Â Thevesh Theva
54 mins ago

2

underset? Oh, no!
â€“Â egreg
43 mins ago

2

I believe it's far more idiomatic to write intlimits_... than underset...int.
â€“Â Mico
42 mins ago

1

I don't think it's correct to claim that the some of the parentheses in the terms below the int symbol have to be enlarged. The basic size does just fine. And, it is not necessary to switch from an equation environment to an equation* environment in order to use tag. That said, I don't think that reproducing a specific equation number is part of the OP's stated objectives.
â€“Â Mico
20 mins ago

Â |Â
show 2 more comments

up vote
0
down vote

accepted

By making use of the substack command (requires the amsmath package):

undersetsubstackphi(x_1^0,x) = phi_1(x) \ phi(x_2^0,x)= phi_2(x)int

Some additional pointers:

Since you're using mathcalD fairly often, I would advise declaring a new command with newcommandDensuremathmathcalD. Then you can simply use D every time you need it. Makes your code far more readable.

Put tag9.16 at the end of the line to tag the equation as (9.16), as per the image.

Your code for phi(x^0_2,textbfx) produces parentheses which are not big enough. You should instead use left( right) to have them correctly sized.

You should not use textbfx to indicate the vector x. Instead, use vecx (which puts an arrow above the x). If you want to change the output of vecx to bold text instead, use renewcommandvecmathbf.

All these suggestions plus the original answer are incorporated here:

newcommandDensuremathmathcalD
renewcommandvecmathbf

beginequation 
intDphi(x)=
int Dphi_1(vecx) 
int Dphi_2(vecx) 
intlimits_substackphileft(x_1^0,vecxright) = phi_1(vecx) \ phileft(x_2^0,vecxright)= phi_2(vecx) Dphi(x) tag9.16
endequation

This gives the desired output:

enter image description here

edited 1 min ago

answered 1 hour ago

Thevesh Theva

32011

By making use of the substack command (requires the amsmath package):

undersetsubstackphi(x_1^0,x) = phi_1(x) \ phi(x_2^0,x)= phi_2(x)int

Some additional pointers:

Since you're using mathcalD fairly often, I would advise declaring a new command with newcommandDensuremathmathcalD. Then you can simply use D every time you need it. Makes your code far more readable.

Put tag9.16 at the end of the line to tag the equation as (9.16), as per the image.

Your code for phi(x^0_2,textbfx) produces parentheses which are not big enough. You should instead use left( right) to have them correctly sized.

You should not use textbfx to indicate the vector x. Instead, use vecx (which puts an arrow above the x). If you want to change the output of vecx to bold text instead, use renewcommandvecmathbf.

All these suggestions plus the original answer are incorporated here:

newcommandDensuremathmathcalD
renewcommandvecmathbf

beginequation 
intDphi(x)=
int Dphi_1(vecx) 
int Dphi_2(vecx) 
intlimits_substackphileft(x_1^0,vecxright) = phi_1(vecx) \ phileft(x_2^0,vecxright)= phi_2(vecx) Dphi(x) tag9.16
endequation

This gives the desired output:

enter image description here

edited 1 min ago

answered 1 hour ago

Thevesh Theva

32011

edited 1 min ago

answered 1 hour ago

Thevesh Theva

32011

answered 1 hour ago

Thevesh Theva

32011

answered 1 hour ago

Thevesh Theva

32011

thank you very much sir.;)
â€“Â jowadul kader
1 hour ago

@campa I kind of agree re the brackets, but I'll leave it to OP's tastes. As for textbf, I agree that it's better to redefine the vec command instead; I'll edit that into my answer in a while.
â€“Â Thevesh Theva
54 mins ago

2

underset? Oh, no!
â€“Â egreg
43 mins ago

2

I believe it's far more idiomatic to write intlimits_... than underset...int.
â€“Â Mico
42 mins ago

1

I don't think it's correct to claim that the some of the parentheses in the terms below the int symbol have to be enlarged. The basic size does just fine. And, it is not necessary to switch from an equation environment to an equation* environment in order to use tag. That said, I don't think that reproducing a specific equation number is part of the OP's stated objectives.
â€“Â Mico
20 mins ago

Â |Â
show 2 more comments

thank you very much sir.;)
â€“Â jowadul kader
1 hour ago

@campa I kind of agree re the brackets, but I'll leave it to OP's tastes. As for textbf, I agree that it's better to redefine the vec command instead; I'll edit that into my answer in a while.
â€“Â Thevesh Theva
54 mins ago

2

underset? Oh, no!
â€“Â egreg
43 mins ago

2

I believe it's far more idiomatic to write intlimits_... than underset...int.
â€“Â Mico
42 mins ago

1

I don't think it's correct to claim that the some of the parentheses in the terms below the int symbol have to be enlarged. The basic size does just fine. And, it is not necessary to switch from an equation environment to an equation* environment in order to use tag. That said, I don't think that reproducing a specific equation number is part of the OP's stated objectives.
â€“Â Mico
20 mins ago

thank you very much sir.;)
â€“Â jowadul kader
1 hour ago

@campa I kind of agree re the brackets, but I'll leave it to OP's tastes. As for textbf, I agree that it's better to redefine the vec command instead; I'll edit that into my answer in a while.
â€“Â Thevesh Theva
54 mins ago

underset? Oh, no!
â€“Â egreg
43 mins ago

I believe it's far more idiomatic to write intlimits_... than underset...int.
â€“Â Mico
42 mins ago

I don't think it's correct to claim that the some of the parentheses in the terms below the int symbol have to be enlarged. The basic size does just fine. And, it is not necessary to switch from an equation environment to an equation* environment in order to use tag. That said, I don't think that reproducing a specific equation number is part of the OP's stated objectives.
â€“Â Mico
20 mins ago

Â |Â
show 2 more comments

up vote
2
down vote

In my opinion, it looks nicer at the bottom right side of the integral. Anyway, here are 3 possibilies:

documentclassarticle

usepackagemathtools
begindocument

beginequation
intmathcalDphi(x)=int mathcalDphi_1(textbfx) int mathcalDphi_2(textbfx) int_substackphi(x^0_1,textbfx)=phi_1(textbfx),\ phi(x^0_2,textbfx)=phi_2(textbfx)strut mathcalDphi(x) 
endequation
beginequation
intmathcalDphi(x)=int mathcalDphi_1(textbfx) int mathcalDphi_2(textbfx) int_mathrlapsubstackmathstrut\phi(x^0_1,textbfx)=phi_1(textbfx),\ phi(x^0_2,textbfx)=phi_2(textbfx)strut; mathcalDphi(x)
endequation
beginequation
intmathcalDphi(x)=int mathcalDphi_1(textbfx) int mathcalDphi_2(textbfx) smashoperator int_substackphi(x^0_1,textbfx)=phi_1(textbfx),\ phi(x^0_2,textbfx)=phi_2(textbfx)strut mathcalDphi(x)
endequation

enddocument

enter image description here

answered 1 hour ago

Bernard

157k764190

add a commentÂ |Â

up vote
2
down vote

In my opinion, it looks nicer at the bottom right side of the integral. Anyway, here are 3 possibilies:

documentclassarticle

usepackagemathtools
begindocument

beginequation
intmathcalDphi(x)=int mathcalDphi_1(textbfx) int mathcalDphi_2(textbfx) int_substackphi(x^0_1,textbfx)=phi_1(textbfx),\ phi(x^0_2,textbfx)=phi_2(textbfx)strut mathcalDphi(x) 
endequation
beginequation
intmathcalDphi(x)=int mathcalDphi_1(textbfx) int mathcalDphi_2(textbfx) int_mathrlapsubstackmathstrut\phi(x^0_1,textbfx)=phi_1(textbfx),\ phi(x^0_2,textbfx)=phi_2(textbfx)strut; mathcalDphi(x)
endequation
beginequation
intmathcalDphi(x)=int mathcalDphi_1(textbfx) int mathcalDphi_2(textbfx) smashoperator int_substackphi(x^0_1,textbfx)=phi_1(textbfx),\ phi(x^0_2,textbfx)=phi_2(textbfx)strut mathcalDphi(x)
endequation

enddocument

enter image description here

answered 1 hour ago

Bernard

157k764190

add a commentÂ |Â

up vote
2
down vote

In my opinion, it looks nicer at the bottom right side of the integral. Anyway, here are 3 possibilies:

documentclassarticle

usepackagemathtools
begindocument

beginequation
intmathcalDphi(x)=int mathcalDphi_1(textbfx) int mathcalDphi_2(textbfx) int_substackphi(x^0_1,textbfx)=phi_1(textbfx),\ phi(x^0_2,textbfx)=phi_2(textbfx)strut mathcalDphi(x) 
endequation
beginequation
intmathcalDphi(x)=int mathcalDphi_1(textbfx) int mathcalDphi_2(textbfx) int_mathrlapsubstackmathstrut\phi(x^0_1,textbfx)=phi_1(textbfx),\ phi(x^0_2,textbfx)=phi_2(textbfx)strut; mathcalDphi(x)
endequation
beginequation
intmathcalDphi(x)=int mathcalDphi_1(textbfx) int mathcalDphi_2(textbfx) smashoperator int_substackphi(x^0_1,textbfx)=phi_1(textbfx),\ phi(x^0_2,textbfx)=phi_2(textbfx)strut mathcalDphi(x)
endequation

enddocument

enter image description here

answered 1 hour ago

Bernard

157k764190

In my opinion, it looks nicer at the bottom right side of the integral. Anyway, here are 3 possibilies:

documentclassarticle

usepackagemathtools
begindocument

beginequation
intmathcalDphi(x)=int mathcalDphi_1(textbfx) int mathcalDphi_2(textbfx) int_substackphi(x^0_1,textbfx)=phi_1(textbfx),\ phi(x^0_2,textbfx)=phi_2(textbfx)strut mathcalDphi(x) 
endequation
beginequation
intmathcalDphi(x)=int mathcalDphi_1(textbfx) int mathcalDphi_2(textbfx) int_mathrlapsubstackmathstrut\phi(x^0_1,textbfx)=phi_1(textbfx),\ phi(x^0_2,textbfx)=phi_2(textbfx)strut; mathcalDphi(x)
endequation
beginequation
intmathcalDphi(x)=int mathcalDphi_1(textbfx) int mathcalDphi_2(textbfx) smashoperator int_substackphi(x^0_1,textbfx)=phi_1(textbfx),\ phi(x^0_2,textbfx)=phi_2(textbfx)strut mathcalDphi(x)
endequation

enddocument

enter image description here

answered 1 hour ago

Bernard

157k764190

answered 1 hour ago

Bernard

157k764190

answered 1 hour ago

Bernard

157k764190

answered 1 hour ago

Bernard

157k764190

add a commentÂ |Â

up vote
1
down vote

Here's a variant on @Bernard's third equation, using smashoperator[r]... instead of smashoperator....

Note that I've reduced the distance between the int and mathcalD terms slightly, by inserting ! ("negative thinspace") directives. I've also replaced textbfx with mathbfx.

enter image description here

documentclassarticle
usepackagemathtools % for smashoperator macro
begindocument
beginequation
 int! mathcalDphi(x)=
 int! mathcalDphi_1(mathbfx)
 int! mathcalDphi_2(mathbfx)
 smashoperator[r]intlimits_substack%
 phi(x^0_1,mathbfx)=phi_1(mathbfx),\
 phi(x^0_2,mathbfx)=phi_2(mathbfx)hfill
 ! mathcalDphi(x)
endequation
enddocument

answered 49 mins ago

Mico

265k30357736

add a commentÂ |Â

up vote
1
down vote

Here's a variant on @Bernard's third equation, using smashoperator[r]... instead of smashoperator....

Note that I've reduced the distance between the int and mathcalD terms slightly, by inserting ! ("negative thinspace") directives. I've also replaced textbfx with mathbfx.

enter image description here

documentclassarticle
usepackagemathtools % for smashoperator macro
begindocument
beginequation
 int! mathcalDphi(x)=
 int! mathcalDphi_1(mathbfx)
 int! mathcalDphi_2(mathbfx)
 smashoperator[r]intlimits_substack%
 phi(x^0_1,mathbfx)=phi_1(mathbfx),\
 phi(x^0_2,mathbfx)=phi_2(mathbfx)hfill
 ! mathcalDphi(x)
endequation
enddocument

answered 49 mins ago

Mico

265k30357736

add a commentÂ |Â

up vote
1
down vote

Here's a variant on @Bernard's third equation, using smashoperator[r]... instead of smashoperator....

Note that I've reduced the distance between the int and mathcalD terms slightly, by inserting ! ("negative thinspace") directives. I've also replaced textbfx with mathbfx.

enter image description here

documentclassarticle
usepackagemathtools % for smashoperator macro
begindocument
beginequation
 int! mathcalDphi(x)=
 int! mathcalDphi_1(mathbfx)
 int! mathcalDphi_2(mathbfx)
 smashoperator[r]intlimits_substack%
 phi(x^0_1,mathbfx)=phi_1(mathbfx),\
 phi(x^0_2,mathbfx)=phi_2(mathbfx)hfill
 ! mathcalDphi(x)
endequation
enddocument

answered 49 mins ago

Mico

265k30357736

Here's a variant on @Bernard's third equation, using smashoperator[r]... instead of smashoperator....

Note that I've reduced the distance between the int and mathcalD terms slightly, by inserting ! ("negative thinspace") directives. I've also replaced textbfx with mathbfx.

enter image description here

documentclassarticle
usepackagemathtools % for smashoperator macro
begindocument
beginequation
 int! mathcalDphi(x)=
 int! mathcalDphi_1(mathbfx)
 int! mathcalDphi_2(mathbfx)
 smashoperator[r]intlimits_substack%
 phi(x^0_1,mathbfx)=phi_1(mathbfx),\
 phi(x^0_2,mathbfx)=phi_2(mathbfx)hfill
 ! mathcalDphi(x)
endequation
enddocument

answered 49 mins ago

Mico

265k30357736

answered 49 mins ago

Mico

265k30357736

answered 49 mins ago

Mico

265k30357736

answered 49 mins ago

Mico

265k30357736

add a commentÂ |Â

up vote
1
down vote

My proposal is to back up a little, but not too much as with smashoperator:

documentclassarticle
usepackageamsmath

begindocument

beginequation
int mathcalDphi(x)=
int mathcalDphi_1(mathbfx)
int mathcalDphi_2(mathbfx)
intlimits_scriptscriptstylemspace-12mu
 beginsubarrayl
 phi(x^0_1,mathbfx)=phi_1(mathbfx),\
 phi(x^0_2,mathbfx)=phi_2(mathbfx)
 endsubarraymspace-24mu
 mathcalDphi(x)
endequation

enddocument

The important part is intlimits so the condition is placed below the integral sign. The subarray environment is similar to substack, but it takes an argument for the alignment of the rows.

enter image description here

answered 34 mins ago

egreg

687k8418313078

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up vote
1
down vote

My proposal is to back up a little, but not too much as with smashoperator:

documentclassarticle
usepackageamsmath

begindocument

beginequation
int mathcalDphi(x)=
int mathcalDphi_1(mathbfx)
int mathcalDphi_2(mathbfx)
intlimits_scriptscriptstylemspace-12mu
 beginsubarrayl
 phi(x^0_1,mathbfx)=phi_1(mathbfx),\
 phi(x^0_2,mathbfx)=phi_2(mathbfx)
 endsubarraymspace-24mu
 mathcalDphi(x)
endequation

enddocument

The important part is intlimits so the condition is placed below the integral sign. The subarray environment is similar to substack, but it takes an argument for the alignment of the rows.

enter image description here

answered 34 mins ago

egreg

687k8418313078

add a commentÂ |Â

up vote
1
down vote

My proposal is to back up a little, but not too much as with smashoperator:

documentclassarticle
usepackageamsmath

begindocument

beginequation
int mathcalDphi(x)=
int mathcalDphi_1(mathbfx)
int mathcalDphi_2(mathbfx)
intlimits_scriptscriptstylemspace-12mu
 beginsubarrayl
 phi(x^0_1,mathbfx)=phi_1(mathbfx),\
 phi(x^0_2,mathbfx)=phi_2(mathbfx)
 endsubarraymspace-24mu
 mathcalDphi(x)
endequation

enddocument

The important part is intlimits so the condition is placed below the integral sign. The subarray environment is similar to substack, but it takes an argument for the alignment of the rows.

enter image description here

answered 34 mins ago

egreg

687k8418313078

My proposal is to back up a little, but not too much as with smashoperator:

documentclassarticle
usepackageamsmath

begindocument

beginequation
int mathcalDphi(x)=
int mathcalDphi_1(mathbfx)
int mathcalDphi_2(mathbfx)
intlimits_scriptscriptstylemspace-12mu
 beginsubarrayl
 phi(x^0_1,mathbfx)=phi_1(mathbfx),\
 phi(x^0_2,mathbfx)=phi_2(mathbfx)
 endsubarraymspace-24mu
 mathcalDphi(x)
endequation

enddocument

The important part is intlimits so the condition is placed below the integral sign. The subarray environment is similar to substack, but it takes an argument for the alignment of the rows.

enter image description here

answered 34 mins ago

egreg

687k8418313078

answered 34 mins ago

egreg

687k8418313078

answered 34 mins ago

egreg

687k8418313078

answered 34 mins ago

egreg

687k8418313078

add a commentÂ |Â

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