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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
<herd>emacs</herd>
<longdescription>
Calc is an advanced calculator and mathematical tool that runs as part of
the GNU Emacs environment. Very roughly based on the HP-28/48 series of
calculators, its many features include:
* Choice of algebraic or RPN (stack-based) entry of calculations.
* Arbitrary precision integers and floating-point numbers.
* Arithmetic on rational numbers, complex numbers (rectangular and polar),
error forms with standard deviations, open and closed intervals, vectors
and matrices, dates and times, infinities, sets, quantities with units,
and algebraic formulas.
* Mathematical operations such as logarithms and trigonometric functions.
* Programmer's features (bitwise operations, non-decimal numbers).
* Financial functions such as future value and internal rate of return.
* Number theoretical features such as prime factorization and arithmetic
modulo M for any M.
* Algebraic manipulation features, including symbolic calculus.
* Moving data to and from regular editing buffers.
* "Embedded mode" for manipulating Calc formulas and data directly inside
any editing buffer.
* Graphics using GNUPLOT, a versatile (and free) plotting program.
* Easy programming using keyboard macros, algebraic formulas, algebraic
rewrite rules, or extended Emacs Lisp.
</longdescription>
</pkgmetadata>
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