lmmath.sty

   1 %
   2 %
   3 % lmmath.sty
   4 % (c) 2001 Ben Crowell, licensed under the Creative Commons
   5 % Attribution-ShareAlike license,
   6 % http://creativecommons.org/licenses/by-sa/3.0/
   7 %
   8 % These are mainly convenience macros for typesetting math.
   9 % Also, there's some stuff for typesetting math in sans serif ---
  10 % as discussed Aug 2001 on comp.text.tex, there is supposed to be a better
  11 % way to handle sans serif math. However, I can't figure out how to do it!
  12 %
  13 %
  14 %================================ math ================================
  15 %-------------------- differentials, vectors not in italics, units -------------------
  16 \newcommand{\der}{\operatorname{d\!}}
  17 %   ... the \! is a negative thin space to keep the d close to the variable that comes after it
  18 %       http://tex.stackexchange.com/questions/14821/whats-the-proper-way-to-typeset-a-differential-operator
  19 \newcommand{\divg}{\textup{div}\:}
  20 \newcommand{\curl}{\textup{curl}\:}
  21 \newcommand{\grad}{\textup{grad}\:}
  22 \newcommand{\myvec}[1]{\mathbf{#1}} % Use /vc{} instead.
  23 \newcommand{\myunit}[1]{\textup{#1}}
  24 \newcommand{\kgunit}{\myunit{kg}}
  25 \newcommand{\gunit}{\myunit{g}}
  26 \newcommand{\munit}{\myunit{m}}
  27 \newcommand{\sunit}{\myunit{s}}
  28 \newcommand{\degunit}{\ensuremath{\mspace{0mu}^\circ}} % the \mspace{0mu} is a zero-width math space; need it so that, e.g., $2\times10^{-3}\degunit$ doesn't get
  29                                                        % interpreted as a double superscript
  30 \newcommand{\degcunit}{\degunit\textup{C}}
  31 \newcommand{\junit}{\myunit{J}}
  32 \newcommand{\nunit}{\myunit{N}}
  33 \newcommand{\kunit}{\myunit{K}}
  34 \newcommand{\unitdot}{\!\cdot\!}
  35 \newcommand{\momunit}{\kgunit\unitdot\munit/\sunit}
  36 \newcommand{\btheta}{\boldsymbol{\theta}}
  37 \newcommand{\bomega}{\boldsymbol{\omega}}
  38 \newcommand{\balpha}{\boldsymbol{\alpha}}
  39 \newcommand{\bsigma}{\boldsymbol{\sigma}}
  40 \newcommand{\btau}{\boldsymbol{\tau}}
  41 \newcommand{\bell}{\boldsymbol{\ell}}
  42 \newcommand{\gravunit}{\junit/\kgunit\unitdot\munit}
  43 %========================= vectors in bold =========================
  44 % The following is set up so vectors are in upright bold. If I ever change my mind and want them in
  45 % slanted bold, it should be easy to change here.
  46 \newcommand{\vc}[1]{\ensuremath{\mathbf{#1}}}
  47 %========================= general math stuff =========================
  48 % Symbols for relativity. These are described verbally when introduced in the text, so if I ever change them,
  49 % I need to change the verbal descriptions as well.
  50 \newcommand{\massenergy}{\mathcal{E}}
  51 \newcommand{\interval}{\mathcal{I}}% spacetime interval
  52 %-------------------- math in sans-serif text -------------------
  53 % $...\zs{x}...$ -- italic, for use when I need symbol font mixed in
  54 % $...\zu{x}...$ -- upright, e.g. for digits and things in sans
  55 % See DeclareMathAlphabet near top, and p. 177 of LaTeX companion, for \ms{}.
  56 % Note: don't put superscripts or subscripts inside these, or any math commands
  57 % at all.
  58 % They can all be used outside of math mode in examples or other sans-serif
  59 % text, but won't necessarily produce the right results in serif text,
  60 % since zs forces sans serif. So when cutting and pasting from example text
  61 % into serif text, have to change zs's.
  62 \newcommand{\zs}[1]{\ensuremath{\ms{#1}}}
  63 \newcommand{\zu}[1]{\textup{#1}}
  64 \newcommand{\zb}[1]{\textbf{#1}}
  65 %==============================================
  66 \newenvironment{longnoteafterequation}
  67         {%
  68                 \setlength{\saveleftskip}{\leftskip}%
  69                 \addtolength{\leftskip}{20mm}\noindent%
  70         }
  71         {%
  72                  \par\setlength{\leftskip}{\saveleftskip} \par
  73         }
  74 %==============================================
  75 \newcommand{\mygamma}{\textup{\textgamma}}  % more legible for students who don't know Greek alphabet; they mistake Computer Modern gamma for Latin y
  76 % For reasons I don't understand, this doesn't work in SN. In SN, ch 1 redefines it as plain old \gamma.