RE: HP48-HP50G : Error functions ERF(z), FRESNEL integrals, PROBIT, etc.

[Gil]

New version 9

MAIN FUNCTIONS:
all labelled with some capitals.

All of them accept real or complex format.

Automatic limitation of inputs:
to insure good results (up to 9-10 digits).

Many help programs/sub routines:
all labelled with small letters.

Arg/input = ± infinity, ±i × infinity:
ERF and ERFi functions OK for these extreme cases.

Reverse functions of ERF and ERFc only accept, as argument,
real x or z=a+ib with b=0.

All other functions accept, as argument,
real x or z=a+ib with a, b free real.

Extreme cases for arg/input = ± infinity, ±i × infinity
for functions iERFc ERFcx FADDEEVA DAWSON:
still to be handled.