Forth850 v1.3
Allow floating point constants with no digits after E; add stripped-down FACT.FTH, TRIG.FTH and LOGS.FTH based on MATH.FTH (which has more details).
Allow floating point constants with no digits after E; add stripped-down FACT.FTH, TRIG.FTH and LOGS.FTH based on MATH.FTH (which has more details).