The Complementary Error Function

Subchapters

The Complementary Error Function

Syntax	`erfc(`x`)`
See Also	erf , cnormal , ierf

Description
Returns an element-by-element approximation of the complementary error function, where x is a real or double-precision matrix.

The complementary error function is defined by



                 inf    2

         2       /    -t

     ----------  |  e    dt

     sqrt(2 pi)  /

                  x

which is also equal to 1 - erf(x).

Example




     ginit

     x = 0. : .1 : 3. 

     gtitle("Complementary Error Function")

     gplot(x, erfc(x))

returns the following plot: