4 commits

Author	SHA1	Message	Date
Enno Rehling	e3a969ce9b	add a test to see that frac_make can handle large integers.	2017-03-06 21:43:31 +01:00
Enno Rehling	e557140ad1	more fractions functionality.	2017-02-24 20:47:31 +01:00
Enno Rehling	e0229be500	also implement subtraction.	2017-02-24 17:56:39 +01:00
Enno Rehling	234eb62226	short and sweet math with fractions. ... goinf to use this for magres.	2017-02-24 17:51:35 +01:00