[Math] Add shortcut for writing partial derivatives
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@@ -28,6 +28,8 @@
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\newcommand{\defAs}{\overset{\text{def}}{=}}
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\newcommand{\defAs}{\overset{\text{def}}{=}}
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\newcommand{\der}[1]{\frac{\mbox{d}}{\mbox{d}#1}}
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\newcommand{\der}[1]{\frac{\mbox{d}}{\mbox{d}#1}}
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\newcommand{\dern}[2]{\frac{\mbox{d}^{#2}}{\mbox{d}^{#2}#1}}
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\newcommand{\dern}[2]{\frac{\mbox{d}^{#2}}{\mbox{d}^{#2}#1}}
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\newcommand{\parder}[1]{\frac{\partial}{\partial #1}}
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\newcommand{\pardern}[2]{\frac{\partial^{#2}}{\partial^{#2} #1}}
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\newcommand{\defEquiv}{\overset{\text{def}}{\Leftrightarrow}}
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\newcommand{\defEquiv}{\overset{\text{def}}{\Leftrightarrow}}
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\newcommand{\defImplies}{\overset{\text{def}}{\Rightarrow}}
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\newcommand{\defImplies}{\overset{\text{def}}{\Rightarrow}}
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\newcommand{\divides}{\hspace{0.25em}|\hspace{0.25em}}
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\newcommand{\divides}{\hspace{0.25em}|\hspace{0.25em}}
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