Pascal Super Library/Pascal Super Library (CW International)(1997).bin/MATH/NRPAS13/ERF.PAS

Pascal/Delphi Source File | 1991-04-29 | 163b | 9 lines

FUNCTION erf(x: real): real;
BEGIN
   IF (x < 0.0) THEN BEGIN
      erf := -gammp(0.5,sqr(x))
   END ELSE BEGIN
      erf := gammp(0.5,sqr(x))
   END
END;