Elemental Intrinsic Function (Generic): Returns the scaled complementary error function of an argument.
result = ERFC_SCALED (x)
x |
(Input) Must be of type real. |
The result type and kind are the same as x.
The result has a value equal to a processor-dependent approximation to the exponentially scaled complementary error function of
The complementary error function is asymptotic to . As such it underflows for
when using IEEE single-precision arithmetic. The exponentially scaled complementary error function is asymptotic to
. As such it does not
underflow until
.
ERFC_SCALED (20.0) has the approximate value 0.02817434874.