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