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

[Gil]

1) Thanks for your fast reaction and your painstaking, Albert.

Will look at your explanations tomorrow.

2) To John : my apologises. Your test sign with IF condition was really necessary, for a zero value as input will indeed give an undermined sign ('?` on HP50G) : 2—nil for you! [/align]

3) Regarding the argument signs : I used induly that method for complex numbers, resulting in meaningless results —> the programs will have to be corrected.