macroes.tex

\def\pd#1#2{\frac{\partial#1}{\partial#2}}
\def\d#1#2{\frac{\mathrm{d}#1}{\mathrm{d}#2}}
\def\pdd#1#2{\frac{\partial^{2}#1}{\partial#2^{2}}}
\def\dd#1#2{\frac{\mathrm{d}^{2}#1}{\mathrm{d}#2^{2}}}
\def\ddd#1#2{\frac{\mathrm{d}^{3}#1}{\mathrm{d}#2^{3}}}
\def\e{\mathrm{e}}
\def\i{\mathrm{i}}
\def\j{\mathrm{j}}
\def\grad{\operatorname{grad}}
\def\rot{\operatorname{rot}}
\def\div{\operatorname{div}}
\def\diag{\operatorname{diag}}
\def\rank{\operatorname{rank}}
\def\prob{\operatorname{Prob}}
\def\cov{\operatorname{Cov}}
\def\when#1{\left.#1\right|}
\def\laplace#1{\mathcal{L}\left[#1\right]}
\def\invlaplace#1{\mathcal{L}^{-1}\left[#1\right]}
\def\combination#1#2{_{#1}\mathrm{C}_{#2}}
\def\permutation#1#2{_{#1}\mathrm{P}_{#2}}