Returns a real floating point value that is an approximation of the error function of x.
ERF(x)
x is a real expression.
The result has the base and precision of x, and a value given by (2/ &sqrt.(&pi.) ) &integral.(x)[0] EXP(-(t(2) ))dt.
None.
Description
The result has the base and precision of x, and a value given by (2/ &sqrt.(&pi.) ) &integral.(x)[0] EXP(-(t(2) ))dt.