# ERFC_SCALED

Elemental Intrinsic Function (Generic): Returns the scaled complementary error function of an argument.

result = ERFC_SCALED (x)

x | (Input) Must be of type real.

## Results

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

### Note

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 .

## Example

ERFC_SCALED (20.0) has the approximate value 0.02817434874.

Parent topic: E to F

## See Also

ERFC