Nested cases, alignment and numbering
up vote
6
down vote
favorite
I have tried all different sorts of solutions including align, aligned, cases and equation to have the result I get with this code except that I want numbering for the three lines in the aligned subenvironment. Do you have a solution or better way of representing this?
begin{equation}
left{
begin{aligned}
partial_t u(vec{x},t) - alpha Delta u(vec{x},t) &= f(vec{x}), &&(vec{x},t) in Omega times J, \
%
u(vec{x},t) &= 0, &&(vec{x},t) in partial Omega times J, \
%
u(vec{x},0) &=
begin{cases}
rho, &vec{x} in T \
0, &vec{x} in B textbackslash T
end{cases}
&&vec{x} in B
end{aligned}
right.
end{equation}
numbering align cases nesting alignment
asked Dec 10 at 19:06
Robin Hellmers
969
add a comment |
up vote
6
down vote
favorite
I have tried all different sorts of solutions including align, aligned, cases and equation to have the result I get with this code except that I want numbering for the three lines in the aligned subenvironment. Do you have a solution or better way of representing this?
begin{equation}
left{
begin{aligned}
partial_t u(vec{x},t) - alpha Delta u(vec{x},t) &= f(vec{x}), &&(vec{x},t) in Omega times J, \
%
u(vec{x},t) &= 0, &&(vec{x},t) in partial Omega times J, \
%
u(vec{x},0) &=
begin{cases}
rho, &vec{x} in T \
0, &vec{x} in B textbackslash T
end{cases}
&&vec{x} in B
end{aligned}
right.
end{equation}
numbering align cases nesting alignment
asked Dec 10 at 19:06
Robin Hellmers
969
add a comment |
up vote
6
down vote
favorite
up vote
6
down vote
favorite
I have tried all different sorts of solutions including align, aligned, cases and equation to have the result I get with this code except that I want numbering for the three lines in the aligned subenvironment. Do you have a solution or better way of representing this?
begin{equation}
left{
begin{aligned}
partial_t u(vec{x},t) - alpha Delta u(vec{x},t) &= f(vec{x}), &&(vec{x},t) in Omega times J, \
%
u(vec{x},t) &= 0, &&(vec{x},t) in partial Omega times J, \
%
u(vec{x},0) &=
begin{cases}
rho, &vec{x} in T \
0, &vec{x} in B textbackslash T
end{cases}
&&vec{x} in B
end{aligned}
right.
end{equation}
numbering align cases nesting alignment
asked Dec 10 at 19:06
Robin Hellmers
969
I have tried all different sorts of solutions including align, aligned, cases and equation to have the result I get with this code except that I want numbering for the three lines in the aligned subenvironment. Do you have a solution or better way of representing this?
begin{equation}
left{
begin{aligned}
partial_t u(vec{x},t) - alpha Delta u(vec{x},t) &= f(vec{x}), &&(vec{x},t) in Omega times J, \
%
u(vec{x},t) &= 0, &&(vec{x},t) in partial Omega times J, \
%
u(vec{x},0) &=
begin{cases}
rho, &vec{x} in T \
0, &vec{x} in B textbackslash T
end{cases}
&&vec{x} in B
end{aligned}
right.
end{equation}
numbering align cases nesting alignment
numbering align cases nesting alignment
asked Dec 10 at 19:06
Robin Hellmers
969
asked Dec 10 at 19:06
Robin Hellmers
969
asked Dec 10 at 19:06
Robin Hellmers
969
asked Dec 10 at 19:06
Robin Hellmers
969
asked Dec 10 at 19:06
Robin Hellmers
969
969
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
up vote
6
down vote
accepted
With the use of the empheq package:
documentclass{article}
usepackage{empheq}
begin{document}
begin{empheq}[left=empheqlbrace]{align}
partial_t u(vec{x},t) - alpha Delta u(vec{x},t)
&= f(vec{x}), &&(vec{x},t) in Omega times J, \
%
u(vec{x},t) &= 0, &&(vec{x},t) in partial Omega times J, \
%
u(vec{x},0)
& = begin{cases}
rho, &vec{x} in T \
0, &vec{x} in B setminus T
end{cases}
&&vec{x} in B
end{empheq}
end{document}
edited Dec 10 at 19:57
Werner
435k629561644
answered Dec 10 at 19:18
Zarko
119k865155
1
Don't usetextbackslash. Usesetminusinstead.
– Mico
Dec 10 at 19:24
@Mico, ups, i didn't check used symbols :-(. corrected now. thank you very much!
– Zarko
Dec 10 at 19:46
@Mico, do you have an short explanation of why to use setminus instead of textbackslash?
– Robin Hellmers
Dec 10 at 19:51
@RobinHellmers -textbackslashis a text-mode command. In contrast,setminusis a math-mode command. In your screenshot, note that the spacing around the backslash character is too tight, when compared to the screenshots posted by Zarko and myself.
– Mico
Dec 10 at 20:58
add a comment |
up vote
7
down vote
I don't think that much is gained by aligning the three equations on their respective = symbols. I'd left-align the expressions, using a numcases environment.
documentclass{article}
usepackage{newtxtext,newtxmath,mathrsfs} % optional
usepackage{cases} % for 'numcases' env.
begin{document}
begin{numcases}{}
partial_t u(vec{x},t) - alphaDelta u(vec{x},t) = f(vec{x}),
&$(vec{x},t)inOmegatimes J$, \
u(vec{x},t) = 0,
&$(vec{x},t)inpartialOmegatimes J$, \
u(vec{x},0) =
left{begin{array}{@{}ll@{}}
rho, &vec{x} inmathscr{T} \
0, &vec{x} inmathscr{B}setminus mathscr{T}
end{array}right.
&$vec{x} inmathscr{B}$
end{numcases}
end{document}
answered Dec 10 at 19:23
Mico
272k30369756
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
6
down vote
accepted
With the use of the empheq package:
documentclass{article}
usepackage{empheq}
begin{document}
begin{empheq}[left=empheqlbrace]{align}
partial_t u(vec{x},t) - alpha Delta u(vec{x},t)
&= f(vec{x}), &&(vec{x},t) in Omega times J, \
%
u(vec{x},t) &= 0, &&(vec{x},t) in partial Omega times J, \
%
u(vec{x},0)
& = begin{cases}
rho, &vec{x} in T \
0, &vec{x} in B setminus T
end{cases}
&&vec{x} in B
end{empheq}
end{document}
edited Dec 10 at 19:57
Werner
435k629561644
answered Dec 10 at 19:18
Zarko
119k865155
1
Don't usetextbackslash. Usesetminusinstead.
– Mico
Dec 10 at 19:24
@Mico, ups, i didn't check used symbols :-(. corrected now. thank you very much!
– Zarko
Dec 10 at 19:46
@Mico, do you have an short explanation of why to use setminus instead of textbackslash?
– Robin Hellmers
Dec 10 at 19:51
@RobinHellmers -textbackslashis a text-mode command. In contrast,setminusis a math-mode command. In your screenshot, note that the spacing around the backslash character is too tight, when compared to the screenshots posted by Zarko and myself.
– Mico
Dec 10 at 20:58
add a comment |
up vote
6
down vote
accepted
With the use of the empheq package:
documentclass{article}
usepackage{empheq}
begin{document}
begin{empheq}[left=empheqlbrace]{align}
partial_t u(vec{x},t) - alpha Delta u(vec{x},t)
&= f(vec{x}), &&(vec{x},t) in Omega times J, \
%
u(vec{x},t) &= 0, &&(vec{x},t) in partial Omega times J, \
%
u(vec{x},0)
& = begin{cases}
rho, &vec{x} in T \
0, &vec{x} in B setminus T
end{cases}
&&vec{x} in B
end{empheq}
end{document}
edited Dec 10 at 19:57
Werner
435k629561644
answered Dec 10 at 19:18
Zarko
119k865155
1
Don't usetextbackslash. Usesetminusinstead.
– Mico
Dec 10 at 19:24
@Mico, ups, i didn't check used symbols :-(. corrected now. thank you very much!
– Zarko
Dec 10 at 19:46
@Mico, do you have an short explanation of why to use setminus instead of textbackslash?
– Robin Hellmers
Dec 10 at 19:51
@RobinHellmers -textbackslashis a text-mode command. In contrast,setminusis a math-mode command. In your screenshot, note that the spacing around the backslash character is too tight, when compared to the screenshots posted by Zarko and myself.
– Mico
Dec 10 at 20:58
add a comment |
up vote
6
down vote
accepted
up vote
6
down vote
accepted
With the use of the empheq package:
documentclass{article}
usepackage{empheq}
begin{document}
begin{empheq}[left=empheqlbrace]{align}
partial_t u(vec{x},t) - alpha Delta u(vec{x},t)
&= f(vec{x}), &&(vec{x},t) in Omega times J, \
%
u(vec{x},t) &= 0, &&(vec{x},t) in partial Omega times J, \
%
u(vec{x},0)
& = begin{cases}
rho, &vec{x} in T \
0, &vec{x} in B setminus T
end{cases}
&&vec{x} in B
end{empheq}
end{document}
edited Dec 10 at 19:57
Werner
435k629561644
answered Dec 10 at 19:18
Zarko
119k865155
With the use of the empheq package:
documentclass{article}
usepackage{empheq}
begin{document}
begin{empheq}[left=empheqlbrace]{align}
partial_t u(vec{x},t) - alpha Delta u(vec{x},t)
&= f(vec{x}), &&(vec{x},t) in Omega times J, \
%
u(vec{x},t) &= 0, &&(vec{x},t) in partial Omega times J, \
%
u(vec{x},0)
& = begin{cases}
rho, &vec{x} in T \
0, &vec{x} in B setminus T
end{cases}
&&vec{x} in B
end{empheq}
end{document}
edited Dec 10 at 19:57
Werner
435k629561644
answered Dec 10 at 19:18
Zarko
119k865155
edited Dec 10 at 19:57
Werner
435k629561644
edited Dec 10 at 19:57
Werner
435k629561644
edited Dec 10 at 19:57
Werner
435k629561644
435k629561644
answered Dec 10 at 19:18
Zarko
119k865155
answered Dec 10 at 19:18
Zarko
119k865155
answered Dec 10 at 19:18
Zarko
119k865155
119k865155
1
Don't usetextbackslash. Usesetminusinstead.
– Mico
Dec 10 at 19:24
@Mico, ups, i didn't check used symbols :-(. corrected now. thank you very much!
– Zarko
Dec 10 at 19:46
@Mico, do you have an short explanation of why to use setminus instead of textbackslash?
– Robin Hellmers
Dec 10 at 19:51
@RobinHellmers -textbackslashis a text-mode command. In contrast,setminusis a math-mode command. In your screenshot, note that the spacing around the backslash character is too tight, when compared to the screenshots posted by Zarko and myself.
– Mico
Dec 10 at 20:58
add a comment |
1
Don't usetextbackslash. Usesetminusinstead.
– Mico
Dec 10 at 19:24
@Mico, ups, i didn't check used symbols :-(. corrected now. thank you very much!
– Zarko
Dec 10 at 19:46
@Mico, do you have an short explanation of why to use setminus instead of textbackslash?
– Robin Hellmers
Dec 10 at 19:51
@RobinHellmers -textbackslashis a text-mode command. In contrast,setminusis a math-mode command. In your screenshot, note that the spacing around the backslash character is too tight, when compared to the screenshots posted by Zarko and myself.
– Mico
Dec 10 at 20:58
1
1
Don't use
textbackslash. Use setminus instead.– Mico
Dec 10 at 19:24
Don't use
textbackslash. Use setminus instead.– Mico
Dec 10 at 19:24
@Mico, ups, i didn't check used symbols :-(. corrected now. thank you very much!
– Zarko
Dec 10 at 19:46
@Mico, ups, i didn't check used symbols :-(. corrected now. thank you very much!
– Zarko
Dec 10 at 19:46
@Mico, do you have an short explanation of why to use setminus instead of textbackslash?
– Robin Hellmers
Dec 10 at 19:51
@Mico, do you have an short explanation of why to use setminus instead of textbackslash?
– Robin Hellmers
Dec 10 at 19:51
@RobinHellmers -
textbackslash is a text-mode command. In contrast, setminus is a math-mode command. In your screenshot, note that the spacing around the backslash character is too tight, when compared to the screenshots posted by Zarko and myself.– Mico
Dec 10 at 20:58
@RobinHellmers -
textbackslash is a text-mode command. In contrast, setminus is a math-mode command. In your screenshot, note that the spacing around the backslash character is too tight, when compared to the screenshots posted by Zarko and myself.– Mico
Dec 10 at 20:58
add a comment |
up vote
7
down vote
I don't think that much is gained by aligning the three equations on their respective = symbols. I'd left-align the expressions, using a numcases environment.
documentclass{article}
usepackage{newtxtext,newtxmath,mathrsfs} % optional
usepackage{cases} % for 'numcases' env.
begin{document}
begin{numcases}{}
partial_t u(vec{x},t) - alphaDelta u(vec{x},t) = f(vec{x}),
&$(vec{x},t)inOmegatimes J$, \
u(vec{x},t) = 0,
&$(vec{x},t)inpartialOmegatimes J$, \
u(vec{x},0) =
left{begin{array}{@{}ll@{}}
rho, &vec{x} inmathscr{T} \
0, &vec{x} inmathscr{B}setminus mathscr{T}
end{array}right.
&$vec{x} inmathscr{B}$
end{numcases}
end{document}
answered Dec 10 at 19:23
Mico
272k30369756
add a comment |
up vote
7
down vote
I don't think that much is gained by aligning the three equations on their respective = symbols. I'd left-align the expressions, using a numcases environment.
documentclass{article}
usepackage{newtxtext,newtxmath,mathrsfs} % optional
usepackage{cases} % for 'numcases' env.
begin{document}
begin{numcases}{}
partial_t u(vec{x},t) - alphaDelta u(vec{x},t) = f(vec{x}),
&$(vec{x},t)inOmegatimes J$, \
u(vec{x},t) = 0,
&$(vec{x},t)inpartialOmegatimes J$, \
u(vec{x},0) =
left{begin{array}{@{}ll@{}}
rho, &vec{x} inmathscr{T} \
0, &vec{x} inmathscr{B}setminus mathscr{T}
end{array}right.
&$vec{x} inmathscr{B}$
end{numcases}
end{document}
answered Dec 10 at 19:23
Mico
272k30369756
add a comment |
up vote
7
down vote
up vote
7
down vote
I don't think that much is gained by aligning the three equations on their respective = symbols. I'd left-align the expressions, using a numcases environment.
documentclass{article}
usepackage{newtxtext,newtxmath,mathrsfs} % optional
usepackage{cases} % for 'numcases' env.
begin{document}
begin{numcases}{}
partial_t u(vec{x},t) - alphaDelta u(vec{x},t) = f(vec{x}),
&$(vec{x},t)inOmegatimes J$, \
u(vec{x},t) = 0,
&$(vec{x},t)inpartialOmegatimes J$, \
u(vec{x},0) =
left{begin{array}{@{}ll@{}}
rho, &vec{x} inmathscr{T} \
0, &vec{x} inmathscr{B}setminus mathscr{T}
end{array}right.
&$vec{x} inmathscr{B}$
end{numcases}
end{document}
answered Dec 10 at 19:23
Mico
272k30369756
I don't think that much is gained by aligning the three equations on their respective = symbols. I'd left-align the expressions, using a numcases environment.
documentclass{article}
usepackage{newtxtext,newtxmath,mathrsfs} % optional
usepackage{cases} % for 'numcases' env.
begin{document}
begin{numcases}{}
partial_t u(vec{x},t) - alphaDelta u(vec{x},t) = f(vec{x}),
&$(vec{x},t)inOmegatimes J$, \
u(vec{x},t) = 0,
&$(vec{x},t)inpartialOmegatimes J$, \
u(vec{x},0) =
left{begin{array}{@{}ll@{}}
rho, &vec{x} inmathscr{T} \
0, &vec{x} inmathscr{B}setminus mathscr{T}
end{array}right.
&$vec{x} inmathscr{B}$
end{numcases}
end{document}
answered Dec 10 at 19:23
Mico
272k30369756
edited Dec 10 at 21:04
answered Dec 10 at 19:23
Mico
272k30369756
answered Dec 10 at 19:23
Mico
272k30369756
answered Dec 10 at 19:23
Mico
272k30369756
272k30369756
add a comment |
add a comment |
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