What is wrong in the following latex math code?
1
$$
left. begin{array}{c}
frac{NR}{K}=50\
0<Rleqslant 35\
NRgeqslant 65\
N>0\
K=24\
NRgeqslant text{600 }left( an,,initial,,guess right)\
end{array} right} Rightarrow left{ begin{array}{c}
K_{min}=24\
N_{min}=40\
R_{max}=30\
end{array} right.
\
left. begin{array}{c}
R_U=frac{NR}{I}\
R_D=frac{NR}{J}\
K=I+J\
end{array} right} Rightarrow left{ begin{array}{c}
I=K-Kalpha =24-24cdot frac{1}{4}=18\
J=Kalpha =24cdot frac{1}{4}=6\
end{array} right.
$$
I have tried to debug this code for a long time. The editor keeps telling me there is an error "Undefined control sequence". Can anyone help me out find where the problem is? Thanks.
equations amsmath
edited Mar 31 at 5:39
JouleV
12k22662
asked Mar 31 at 5:37
LarryLarry
61
|
show 3 more comments
1
$$
left. begin{array}{c}
frac{NR}{K}=50\
0<Rleqslant 35\
NRgeqslant 65\
N>0\
K=24\
NRgeqslant text{600 }left( an,,initial,,guess right)\
end{array} right} Rightarrow left{ begin{array}{c}
K_{min}=24\
N_{min}=40\
R_{max}=30\
end{array} right.
\
left. begin{array}{c}
R_U=frac{NR}{I}\
R_D=frac{NR}{J}\
K=I+J\
end{array} right} Rightarrow left{ begin{array}{c}
I=K-Kalpha =24-24cdot frac{1}{4}=18\
J=Kalpha =24cdot frac{1}{4}=6\
end{array} right.
$$
I have tried to debug this code for a long time. The editor keeps telling me there is an error "Undefined control sequence". Can anyone help me out find where the problem is? Thanks.
equations amsmath
edited Mar 31 at 5:39
JouleV
12k22662
asked Mar 31 at 5:37
LarryLarry
61
First of all: don't use$$.
– JouleV
Mar 31 at 5:40
Why? This is not an inline math equation.
– Larry
Mar 31 at 5:40
Read here for why.
– JouleV
Mar 31 at 5:41
1
You need to loadamssymb, see here: tex.stackexchange.com/q/16592/121799
– marmot
Mar 31 at 5:47
2
@marmotamsmathis also needed.
– JouleV
Mar 31 at 5:51
|
show 3 more comments
1
1
1
$$
left. begin{array}{c}
frac{NR}{K}=50\
0<Rleqslant 35\
NRgeqslant 65\
N>0\
K=24\
NRgeqslant text{600 }left( an,,initial,,guess right)\
end{array} right} Rightarrow left{ begin{array}{c}
K_{min}=24\
N_{min}=40\
R_{max}=30\
end{array} right.
\
left. begin{array}{c}
R_U=frac{NR}{I}\
R_D=frac{NR}{J}\
K=I+J\
end{array} right} Rightarrow left{ begin{array}{c}
I=K-Kalpha =24-24cdot frac{1}{4}=18\
J=Kalpha =24cdot frac{1}{4}=6\
end{array} right.
$$
I have tried to debug this code for a long time. The editor keeps telling me there is an error "Undefined control sequence". Can anyone help me out find where the problem is? Thanks.
equations amsmath
edited Mar 31 at 5:39
JouleV
12k22662
asked Mar 31 at 5:37
LarryLarry
61
$$
left. begin{array}{c}
frac{NR}{K}=50\
0<Rleqslant 35\
NRgeqslant 65\
N>0\
K=24\
NRgeqslant text{600 }left( an,,initial,,guess right)\
end{array} right} Rightarrow left{ begin{array}{c}
K_{min}=24\
N_{min}=40\
R_{max}=30\
end{array} right.
\
left. begin{array}{c}
R_U=frac{NR}{I}\
R_D=frac{NR}{J}\
K=I+J\
end{array} right} Rightarrow left{ begin{array}{c}
I=K-Kalpha =24-24cdot frac{1}{4}=18\
J=Kalpha =24cdot frac{1}{4}=6\
end{array} right.
$$
I have tried to debug this code for a long time. The editor keeps telling me there is an error "Undefined control sequence". Can anyone help me out find where the problem is? Thanks.
equations amsmath
equations amsmath
edited Mar 31 at 5:39
JouleV
12k22662
asked Mar 31 at 5:37
LarryLarry
61
edited Mar 31 at 5:39
JouleV
12k22662
asked Mar 31 at 5:37
LarryLarry
61
edited Mar 31 at 5:39
JouleV
12k22662
edited Mar 31 at 5:39
JouleV
12k22662
edited Mar 31 at 5:39
JouleV
12k22662
12k22662
asked Mar 31 at 5:37
LarryLarry
61
asked Mar 31 at 5:37
LarryLarry
61
asked Mar 31 at 5:37
LarryLarry
61
61
First of all: don't use$$.
– JouleV
Mar 31 at 5:40
Why? This is not an inline math equation.
– Larry
Mar 31 at 5:40
Read here for why.
– JouleV
Mar 31 at 5:41
1
You need to loadamssymb, see here: tex.stackexchange.com/q/16592/121799
– marmot
Mar 31 at 5:47
2
@marmotamsmathis also needed.
– JouleV
Mar 31 at 5:51
|
show 3 more comments
First of all: don't use$$.
– JouleV
Mar 31 at 5:40
Why? This is not an inline math equation.
– Larry
Mar 31 at 5:40
Read here for why.
– JouleV
Mar 31 at 5:41
1
You need to loadamssymb, see here: tex.stackexchange.com/q/16592/121799
– marmot
Mar 31 at 5:47
2
@marmotamsmathis also needed.
– JouleV
Mar 31 at 5:51
First of all: don't use
$$.– JouleV
Mar 31 at 5:40
First of all: don't use
$$.– JouleV
Mar 31 at 5:40
Why? This is not an inline math equation.
– Larry
Mar 31 at 5:40
Why? This is not an inline math equation.
– Larry
Mar 31 at 5:40
Read here for why.
– JouleV
Mar 31 at 5:41
Read here for why.
– JouleV
Mar 31 at 5:41
1
1
You need to load
amssymb, see here: tex.stackexchange.com/q/16592/121799– marmot
Mar 31 at 5:47
You need to load
amssymb, see here: tex.stackexchange.com/q/16592/121799– marmot
Mar 31 at 5:47
2
2
@marmot
amsmath is also needed.– JouleV
Mar 31 at 5:51
@marmot
amsmath is also needed.– JouleV
Mar 31 at 5:51
|
show 3 more comments
1 Answer
1
active
oldest
votes
2
In LaTeX, you have to use packages to use some predefined commands, like leqslant, geqslant or text. This is one of the main differences of LaTeX and MathJax. The first two commands require amssymb, while the last one needs amsmath. Btw, don't use $$ $$ like in MathJax.
documentclass{article}
usepackage{amssymb}
usepackage{amsmath}
begin{document}
[
left. begin{array}{c}
frac{NR}{K}=50\
0<Rleqslant 35\
NRgeqslant 65\
N>0\
K=24\
NRgeqslant text{600 }left( an,,initial,,guess right)\
end{array} right} Rightarrow left{ begin{array}{c}
K_{min}=24\
N_{min}=40\
R_{max}=30\
end{array} right.
\
left. begin{array}{c}
R_U=frac{NR}{I}\
R_D=frac{NR}{J}\
K=I+J\
end{array} right} Rightarrow left{ begin{array}{c}
I=K-Kalpha =24-24cdot frac{1}{4}=18\
J=Kalpha =24cdot frac{1}{4}=6\
end{array} right.
]
end{document}
However, why do you use array with left and right? The spacing is awful! Also, using either $$ or [ ] won't let you have line breaks.
documentclass{article}
usepackage{amssymb}
usepackage{amsmath}
begin{document}
begin{align*}
left.begin{aligned}
tfrac{NR}{K}=50\
0<Rleqslant 35\
NRgeqslant 65\
N>0\
K=24\
NRgeqslant600text{ (an initial guess)}
end{aligned}right}&Rightarrowbegin{cases}
R_U=frac{NR}{I}\
R_D=frac{NR}{J}\
K=I+J
end{cases}\
left.begin{aligned}
R_U=tfrac{NR}{I}\
R_D=tfrac{NR}{J}\
K=I+J
end{aligned}right}&Rightarrowbegin{cases}
I=K-Kalpha =24-24cdot frac{1}{4}=18\
J=Kalpha =24cdot frac{1}{4}=6
end{cases}
end{align*}
end{document}
answered Mar 31 at 5:59
JouleVJouleV
12k22662
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
2
In LaTeX, you have to use packages to use some predefined commands, like leqslant, geqslant or text. This is one of the main differences of LaTeX and MathJax. The first two commands require amssymb, while the last one needs amsmath. Btw, don't use $$ $$ like in MathJax.
documentclass{article}
usepackage{amssymb}
usepackage{amsmath}
begin{document}
[
left. begin{array}{c}
frac{NR}{K}=50\
0<Rleqslant 35\
NRgeqslant 65\
N>0\
K=24\
NRgeqslant text{600 }left( an,,initial,,guess right)\
end{array} right} Rightarrow left{ begin{array}{c}
K_{min}=24\
N_{min}=40\
R_{max}=30\
end{array} right.
\
left. begin{array}{c}
R_U=frac{NR}{I}\
R_D=frac{NR}{J}\
K=I+J\
end{array} right} Rightarrow left{ begin{array}{c}
I=K-Kalpha =24-24cdot frac{1}{4}=18\
J=Kalpha =24cdot frac{1}{4}=6\
end{array} right.
]
end{document}
However, why do you use array with left and right? The spacing is awful! Also, using either $$ or [ ] won't let you have line breaks.
documentclass{article}
usepackage{amssymb}
usepackage{amsmath}
begin{document}
begin{align*}
left.begin{aligned}
tfrac{NR}{K}=50\
0<Rleqslant 35\
NRgeqslant 65\
N>0\
K=24\
NRgeqslant600text{ (an initial guess)}
end{aligned}right}&Rightarrowbegin{cases}
R_U=frac{NR}{I}\
R_D=frac{NR}{J}\
K=I+J
end{cases}\
left.begin{aligned}
R_U=tfrac{NR}{I}\
R_D=tfrac{NR}{J}\
K=I+J
end{aligned}right}&Rightarrowbegin{cases}
I=K-Kalpha =24-24cdot frac{1}{4}=18\
J=Kalpha =24cdot frac{1}{4}=6
end{cases}
end{align*}
end{document}
answered Mar 31 at 5:59
JouleVJouleV
12k22662
add a comment |
2
In LaTeX, you have to use packages to use some predefined commands, like leqslant, geqslant or text. This is one of the main differences of LaTeX and MathJax. The first two commands require amssymb, while the last one needs amsmath. Btw, don't use $$ $$ like in MathJax.
documentclass{article}
usepackage{amssymb}
usepackage{amsmath}
begin{document}
[
left. begin{array}{c}
frac{NR}{K}=50\
0<Rleqslant 35\
NRgeqslant 65\
N>0\
K=24\
NRgeqslant text{600 }left( an,,initial,,guess right)\
end{array} right} Rightarrow left{ begin{array}{c}
K_{min}=24\
N_{min}=40\
R_{max}=30\
end{array} right.
\
left. begin{array}{c}
R_U=frac{NR}{I}\
R_D=frac{NR}{J}\
K=I+J\
end{array} right} Rightarrow left{ begin{array}{c}
I=K-Kalpha =24-24cdot frac{1}{4}=18\
J=Kalpha =24cdot frac{1}{4}=6\
end{array} right.
]
end{document}
However, why do you use array with left and right? The spacing is awful! Also, using either $$ or [ ] won't let you have line breaks.
documentclass{article}
usepackage{amssymb}
usepackage{amsmath}
begin{document}
begin{align*}
left.begin{aligned}
tfrac{NR}{K}=50\
0<Rleqslant 35\
NRgeqslant 65\
N>0\
K=24\
NRgeqslant600text{ (an initial guess)}
end{aligned}right}&Rightarrowbegin{cases}
R_U=frac{NR}{I}\
R_D=frac{NR}{J}\
K=I+J
end{cases}\
left.begin{aligned}
R_U=tfrac{NR}{I}\
R_D=tfrac{NR}{J}\
K=I+J
end{aligned}right}&Rightarrowbegin{cases}
I=K-Kalpha =24-24cdot frac{1}{4}=18\
J=Kalpha =24cdot frac{1}{4}=6
end{cases}
end{align*}
end{document}
answered Mar 31 at 5:59
JouleVJouleV
12k22662
add a comment |
2
2
2
In LaTeX, you have to use packages to use some predefined commands, like leqslant, geqslant or text. This is one of the main differences of LaTeX and MathJax. The first two commands require amssymb, while the last one needs amsmath. Btw, don't use $$ $$ like in MathJax.
documentclass{article}
usepackage{amssymb}
usepackage{amsmath}
begin{document}
[
left. begin{array}{c}
frac{NR}{K}=50\
0<Rleqslant 35\
NRgeqslant 65\
N>0\
K=24\
NRgeqslant text{600 }left( an,,initial,,guess right)\
end{array} right} Rightarrow left{ begin{array}{c}
K_{min}=24\
N_{min}=40\
R_{max}=30\
end{array} right.
\
left. begin{array}{c}
R_U=frac{NR}{I}\
R_D=frac{NR}{J}\
K=I+J\
end{array} right} Rightarrow left{ begin{array}{c}
I=K-Kalpha =24-24cdot frac{1}{4}=18\
J=Kalpha =24cdot frac{1}{4}=6\
end{array} right.
]
end{document}
However, why do you use array with left and right? The spacing is awful! Also, using either $$ or [ ] won't let you have line breaks.
documentclass{article}
usepackage{amssymb}
usepackage{amsmath}
begin{document}
begin{align*}
left.begin{aligned}
tfrac{NR}{K}=50\
0<Rleqslant 35\
NRgeqslant 65\
N>0\
K=24\
NRgeqslant600text{ (an initial guess)}
end{aligned}right}&Rightarrowbegin{cases}
R_U=frac{NR}{I}\
R_D=frac{NR}{J}\
K=I+J
end{cases}\
left.begin{aligned}
R_U=tfrac{NR}{I}\
R_D=tfrac{NR}{J}\
K=I+J
end{aligned}right}&Rightarrowbegin{cases}
I=K-Kalpha =24-24cdot frac{1}{4}=18\
J=Kalpha =24cdot frac{1}{4}=6
end{cases}
end{align*}
end{document}
answered Mar 31 at 5:59
JouleVJouleV
12k22662
In LaTeX, you have to use packages to use some predefined commands, like leqslant, geqslant or text. This is one of the main differences of LaTeX and MathJax. The first two commands require amssymb, while the last one needs amsmath. Btw, don't use $$ $$ like in MathJax.
documentclass{article}
usepackage{amssymb}
usepackage{amsmath}
begin{document}
[
left. begin{array}{c}
frac{NR}{K}=50\
0<Rleqslant 35\
NRgeqslant 65\
N>0\
K=24\
NRgeqslant text{600 }left( an,,initial,,guess right)\
end{array} right} Rightarrow left{ begin{array}{c}
K_{min}=24\
N_{min}=40\
R_{max}=30\
end{array} right.
\
left. begin{array}{c}
R_U=frac{NR}{I}\
R_D=frac{NR}{J}\
K=I+J\
end{array} right} Rightarrow left{ begin{array}{c}
I=K-Kalpha =24-24cdot frac{1}{4}=18\
J=Kalpha =24cdot frac{1}{4}=6\
end{array} right.
]
end{document}
However, why do you use array with left and right? The spacing is awful! Also, using either $$ or [ ] won't let you have line breaks.
documentclass{article}
usepackage{amssymb}
usepackage{amsmath}
begin{document}
begin{align*}
left.begin{aligned}
tfrac{NR}{K}=50\
0<Rleqslant 35\
NRgeqslant 65\
N>0\
K=24\
NRgeqslant600text{ (an initial guess)}
end{aligned}right}&Rightarrowbegin{cases}
R_U=frac{NR}{I}\
R_D=frac{NR}{J}\
K=I+J
end{cases}\
left.begin{aligned}
R_U=tfrac{NR}{I}\
R_D=tfrac{NR}{J}\
K=I+J
end{aligned}right}&Rightarrowbegin{cases}
I=K-Kalpha =24-24cdot frac{1}{4}=18\
J=Kalpha =24cdot frac{1}{4}=6
end{cases}
end{align*}
end{document}
answered Mar 31 at 5:59
JouleVJouleV
12k22662
answered Mar 31 at 5:59
JouleVJouleV
12k22662
answered Mar 31 at 5:59
JouleVJouleV
12k22662
answered Mar 31 at 5:59
JouleVJouleV
12k22662
12k22662
add a comment |
add a comment |
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First of all: don't use
$$.– JouleV
Mar 31 at 5:40
Why? This is not an inline math equation.
– Larry
Mar 31 at 5:40
Read here for why.
– JouleV
Mar 31 at 5:41
1
You need to load
amssymb, see here: tex.stackexchange.com/q/16592/121799– marmot
Mar 31 at 5:47
2
@marmot
amsmathis also needed.– JouleV
Mar 31 at 5:51