Elemental Intrinsic Function (Generic): Returns the complementary error function of an argument.
Syntax
result = ERFC (x)
x |
(Input) Must be of type real. |
Results
The result type is the same as x. The result is in the range 0 to 2.
ERFC returns 1 - ERF(x) and is defined as follows:
ERFC is provided because of the extreme loss of relative accuracy if ERF(x) is called for large x and the result is subtracted from 1.
Specific Name |
Argument Type |
Result Type |
|---|---|---|
ERFC |
REAL(4) |
REAL(4) |
DERFC |
REAL(8) |
REAL(8) |
QERFC |
REAL(16) |
REAL(16) |
Example
ERFC (1.0) has the value 0.1572992057.