59 lines
1.8 KiB
TeX
59 lines
1.8 KiB
TeX
\documentclass[fleqn]{article}
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\usepackage{amsmath,amssymb}
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\usepackage[margin=0.25in]{geometry}
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\usepackage{enumitem}
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\usepackage{systeme}
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\usepackage{mathtools}
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\date{}
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\author{}
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\newcommand{\paren}[1]{\left(#1\right)}
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\renewcommand{\Re}[1]{\operatorname{\mathbb{R}e}\paren{#1}}
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\renewcommand{\Im}[1]{\operatorname{\mathbb{{I}}m}\paren{#1}}
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\newcommand{\C}{\mathbb{C}}
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\newcommand{\N}{\mathbb{N}}
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\newcommand{\Z}{\mathbb{Z}}
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\newcommand{\Q}{\mathbb{Q}}
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\newcommand{\R}{\mathbb{R}}
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\newcommand{\conj}[1]{\overline{#1}}
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\renewcommand{\mod}[1]{\left|#1\right|}
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\newcommand{\abs}[1]{\left|#1\right|}
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\newcommand{\polar}[2]{#1\paren{\cos{\paren{#2}} + i\sin{\paren{#2}}}}
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\newcommand{\adj}[1]{\operatorname{adj}#1}
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\makeatletter
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\renewcommand*\env@matrix[1][*\c@MaxMatrixCols c]{%
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\hskip -\arraycolsep
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\let\@ifnextchar\new@ifnextchar
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\array{#1}}
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\makeatother
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% https://gitlab.com/jim.hefferon/linear-algebra/-/blob/master/src/sty/linalgjh.sty
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\newlength{\grsteplength}
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\setlength{\grsteplength}{1.5ex plus .1ex minus .1ex}
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\newcommand{\grstep}[2][\relax]{%
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\ensuremath{\mathrel{
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\hspace{\grsteplength}\mathop{\longrightarrow}\limits^{#2\mathstrut}_{
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\begin{subarray}{l} #1 \end{subarray}}\hspace{\grsteplength}}}}
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\newcommand{\repeatedgrstep}[2][\relax]{\hspace{-\grsteplength}\grstep[#1]{#2}}
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\newcommand{\swap}{\leftrightarrow}
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% https://tex.stackexchange.com/a/198806
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\makeatletter
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\newcommand{\subalign}[1]{%
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\vcenter{%
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\Let@ \restore@math@cr \default@tag
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\baselineskip\fontdimen10 \scriptfont\tw@
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\advance\baselineskip\fontdimen12 \scriptfont\tw@
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\lineskip\thr@@\fontdimen8 \scriptfont\thr@@
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\lineskiplimit\lineskip
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\ialign{\hfil$\m@th\scriptstyle##$&$\m@th\scriptstyle{}##$\hfil\crcr
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#1\crcr
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}%
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}%
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}
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\makeatother |