Symple

= Symple = Ben Lynn blynn@cs.stanford.edu 2013

== Symple ==

After reading http://www.math.upenn.edu/~wilf/AeqB.html["A = B" by Marko Petkovsek, Herbert Wilf and Doron Zeilberger], I was inspired to experiment with symbolic computation.

I'm uploading this project in its current state because it took some effort to write a basic parser. Even if I proceed no further, at least I'll have a complete example of a re-entrant Flex/Bison parser.

The 'main' program reads an expression from standard input or from the first command-line argument if present, and pretty-prints it:

$ ./main 'sin(x)cos(y) + e^x; 12+3/4' +((sin(x), cos(y)), ^(e, x)) +─┬──┬─sin───x │ └─cos───y └─^─┬─e └─x +((1, 2), /(3, 4)) +─┬──┬─1 │ └─2 └─/─┬─3 └─4

== License ==

See COPYING for details.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA