3 commits

Author	SHA1	Message	Date
mfranz	b71c0c580e	add signum function sgn(); consistent use of braces	2009-05-05 18:34:53 +00:00
mfranz	d1df1132c6	add tangens function	2009-03-25 17:52:43 +00:00
andy	3bcfb0624a	Add soft-coded utilites to the "io" and "math" modules. The math ... stuff is, for the most part, already available in the geo module; but it's small and this naming matches the evolvoing "standard nasal library".	2007-03-29 22:09:25 +00:00