Remove unneeded .isNumber calls
Remove unneeded .isNumber calls

Vows .epislon now checks if the argument is a number, no longer
necessary.

PR-URL: https://github.com/jstat/jstat/pull/119
Reviewed-by: Trevor Norris <9cb5491eb5770dd8e0bf77a8a0335abf5f0488c5@gmail.com>

NorthDecoder/jstat,ggonzale/jstat,akrawitz/jstat,NorthDecoder/jstat,smarden1/jstat,smarden1/jstat,jstat/jstat,JeebsM/jstat,akrawitz/jstat,jstat/jstat,ggonzale/jstat,JeebsM/jstat