% File: ivl_ess.sty % % Essential definitions for standardizing interval notation. % RBK, September 3, 1997. % % Commands for intervals, interval vectors, functions and ranges: \newcommand{\ivl}[1]{\protect{\makebox{\boldmath $#1$}}} \newcommand{\Inf}[1]{{\underline{#1}}} \newcommand{\Sup}[1]{{\overline{#1}}} \newcommand{\midpoint}[1]{\text{\rm m}{\left({#1}\right)}} \newcommand{\width}[1]{{\text{\rm w}{\left(#1\right)}}} \newcommand{\pnt}[1]{{\check #1}} \newcommand{\sol}[1]{{{#1}^{*}}} \newcommand{\mig}[1]{{\makebox{\large$<$} #1 \makebox{\large$>$}}} \newcommand{\signum}[1]{{\rm sgn}(#1)} \newcommand{\slope}{{{\bf S}^\sharp}} \newcommand{\slopebound}{{\bf S}} \newcommand{\grad}{{\nabla\phi}} \newcommand{\gradient}[1]{\nabla {#1}} \newcommand{\ihull}{{\raise2.25pt\hbox{\framebox[3pt]{\phantom{\tiny|}}}}} \newcommand{\isin}{\makebox{\bf sin}} \newcommand{\icos}{\makebox{\bf cos}} % Sets of numbers: % Comment out the following if AMS fonts can be used %\newcommand{\mathbb}{\bit} \newcommand{\R}[1]{{\mathbb R}^{#1}} \newcommand{\C}[1]{{\mathbb C}^{#1}} \newcommand{\Co}{{\mathbb C}} \newcommand{\Ro}{{\mathbb R}} \newcommand{\IR}[1]{{\mathbb{I}\mathbb{R}}^{#1}} \newcommand{\IRo}{{\mathbb{I}\mathbb{R}}} \newcommand{\IC}[1]{{\mathbb{I}\mathbb{C}}^{#1}} \newcommand{\ICo}{{\mathbb{I}\mathbb{C}}} % Miscellaneous -- \newcommand {\interior}[1]{{\makebox{{\rm int}}(#1)}} \newcommand {\bdy}[1]{\makebox{$\ivl\partial$}#1} \newcommand {\union}{\text{\Large$\cup$}} \newcommand{\bigoh}[1]{{\cal O}\left({#1}\right)} \newcommand{\ftn}{\protect{Fortran~90}} \hyphenation{in-ter-val} \hyphenation{in-ter-vals} \hyphenation{com-po-nent} \hyphenation{sys-tems} \hyphenation{pol-y-no-mi-als} \hyphenation{pol-y-no-mi-al} \hyphenation{pre-con-di-tion-er} \hyphenation{Lem-ma} \newcommand{\cancelminus}{\ominus} \newcommand{\cancelplus}{\oplus} \newcommand{\canceldivide}{\oslash} \newcommand{\cancelop}{\hskip2pt\bigcirc\hskip-10.pt\text{\scriptsize{\mit op}}\hskip3pt} \newcommand{\canceltimes}{\otimes} \newcommand{\domain}{{\bf D}}