Index of /macros/latex2e/contrib/calculation |
Name Last modified Size Description
Parent Directory 19-Aug-2019 16:36 - calculation.drv 06-Jan-2015 05:27 1k calculation.dtx 06-Jan-2015 05:27 29k calculation.ins 06-Jan-2015 05:27 1k calculation.pdf 06-Jan-2015 05:27 109k
The "calculation" environment formats reasoned calculations, also called calculational proofs. The notion of reasoned calculations or calculational proofs was originally advocated by Wim Feijen and Edsger Dijkstra. The "calculation" package accepts options "fleqn" and "leqno" (with the same effect as LaTeX options "fleqn" and "leqno", and inherits these from the document class), it allows steps and expressions to be numbered (by LaTeX equation numbers, obeying the LaTeX "\label" command to refer to these numbers), and a step doesn't take vertical space if its hint is empty. An expression in a calculation can be given a comment; it is placed at the side opposite to the equation numbers. Calculations are allowed inside hints although numbering and commenting is then disabled. In its simplest form, the LaTeX source looks like this: \begin{calculation} EXPRESSION \step{HINT} EXPRESSION \step{HINT} EXPRESSION \end{calculation} Each "HINT" is normal text, each "EXPRESSION" is mathematical text. Depending on various parameters, the output is more or less like this: EXPRESSION = { HINT } EXPRESSION = { HINT } EXPRESSION This material is subject to the LaTeX Project Public License: http://www.ctan.org/license/lppl1.3