math: Add cotangent function.
authorDavid Thompson <dthompson2@worcester.edu>
Sun, 13 Aug 2017 17:32:18 +0000 (13:32 -0400)
committerDavid Thompson <dthompson2@worcester.edu>
Thu, 14 Sep 2017 01:16:30 +0000 (21:16 -0400)
commit5e5c0ac2c3f80f14428c19293773245a8477aaaf
tree9a473e52a032081af343a2461eb3bdd8f68ed498
parent49565d13e9da2d68ef66dcf1573611725ef24935
math: Add cotangent function.

* chickadee/math.scm (cotan): New procedure.
chickadee/math.scm
doc/api.texi