- fpstep x nprocedure
- x
- flonum
- n
- integer
Returns the flonum n flonums away from x, according to flonum->ordinal. If x is +nan.0, returns +nan.0.
Examples:
> (fpstep 0.0 1) 5e-324 > (fpstep (fpstep 0.0 1) -1) 0.0 > (fpstep 0.0 -1) -5e-324 > (fpstep +inf.0 1) +inf.0 > (fpstep +inf.0 -1) 1.7976931348623157e+308 > (fpstep -inf.0 -1) -inf.0 > (fpstep -inf.0 1) -1.7976931348623157e+308 > (fpstep +nan.0 1000) +nan.0