43 lines
591 B
TeX
43 lines
591 B
TeX
\ProvidesPackage{mymath}
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\newcommand{\matTT}[9]{
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\[
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\left|\begin{array}{ccc}
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#1 & #2 & #3\\
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#4 & #5 & #6\\
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#7 & #8 & #9
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\end{array}\right|
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\]
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}
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\newcommand{\fork}[4]{
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\left\{
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\begin{array}{l l}
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#1 & \mbox{#2}\\
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#3 & \mbox{#4}\\
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\end{array} \right.}
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\newcommand{\forkthree}[6]{
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\left\{
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\begin{array}{l l}
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#1 & \mbox{#2}\\
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#3 & \mbox{#4}\\
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#5 & \mbox{#6}\\
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\end{array} \right.}
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\newcommand{\vecthree}[3]{
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\begin{bmatrix}
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#1\\
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#2\\
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#3
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\end{bmatrix}
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}
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\newcommand{\vecthreethree}[9]{
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\begin{bmatrix}
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#1 & #2 & #3\\
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#4 & #5 & #6\\
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#7 & #8 & #9
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\end{bmatrix}
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}
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