Developer Reference for Intel® oneAPI Math Kernel Library for Fortran
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v?erfcx
Computes the scaled complementary error function value of vector elements.
Syntax
call vserfcx( n, a, y ) call vserfcxi(n, a, inca, y, incy) call vmserfcx( n, a, y, mode ) call vmserfcxi(n, a, inca, y, incy, mode) call vderfcx( n, a, y ) call vderfcxi(n, a, inca, y, incy) call vmderfcx( n, a, y, mode ) call vmderfcxi(n, a, inca, y, incy, mode)
Include Files
mkl_vml.f90
Input Parameters
Name |
Type |
Description |
---|---|---|
n |
INTEGER, INTENT(IN) |
Specifies the number of elements to be calculated. |
a |
REAL, INTENT(IN) for vserfcx, vmserfcx DOUBLE PRECISION, INTENT(IN) for vderfcx, vmderfcx |
Array that specifies the input vector a. |
inca, incy |
INTEGER, INTENT(IN) |
Specifies increments for the elements of a and y. |
mode |
INTEGER(KIND=8), INTENT(IN) |
Overrides global VM mode setting for this function call. See vmlSetMode for possible values and their description. |
Output Parameters
Name |
Type |
Description |
---|---|---|
y |
REAL, INTENT(OUT) for vserfcx, vmserfcx DOUBLE PRECISION, INTENT(OUT) for vderfcx, vmderfcx |
Array that specifies the output vector y. |
Description
The erfcx function computes the scaled complementary error function values for elements of the input vector a and writes them to the output vector y.
The scaled complementary error function is defined as follows:
erfcx(x) = exp(x2)▪erfc(x)
Argument | Result | VM Error Status | Exception |
---|---|---|---|
+∞ | +0 | ||
-∞ | +∞ | ||
QNAN | QNAN | ||
SNAN | QNAN | INVALID |