Add longdescription to metadata.

Package-Manager: portage-2.1.4.4

1 files changed, 23 insertions, 0 deletions

diff --git a/app-emacs/calc/metadata.xml b/app-emacs/calc/metadata.xml
index bc306fe58224..32a4e4f4a3ee 100644
--- a/app-emacs/calc/metadata.xml
+++ b/app-emacs/calc/metadata.xml
@@ -2,4 +2,27 @@
 <!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>