Maarten Fokkinga submitted the
calculation
package.
Version number: 1.0
License type: lppl1.3
Summary description: Typesetting reasoned calculations, also called
calculational proofs.
Announcement text:
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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.
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This package is located at
http://mirror.ctan.org/macros/latex/contrib/calculation
More information is at
http://www.ctan.org/pkg/calculation
We are supported by the TeX Users Group http://www.tug.org .
Please join a users group; see http://www.tug.org/usergroups.html .
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Thanks for the upload.
For the CTAN Team
Manfred Lotz
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