Intel® Math Kernel Library 2019 Developer Reference - C
Computes a signed fractional part for each vector element.
vsFrac( n, a, y );
vmsFrac( n, a, y, mode );
vdFrac( n, a, y );
vmdFrac( n, a, y, mode );
Name |
Type |
Description |
|---|---|---|
n |
const MKL_INT |
Specifies the number of elements to be calculated. |
a |
const float* for vsFrac, vmsFrac const double* for vdFrac, vmdFrac |
Pointer to an array that contains the input vector a. |
mode |
const MKL_INT64 |
Overrides global VM mode setting for this function call. See vmlSetMode for possible values and their description. |
Name |
Type |
Description |
|---|---|---|
y |
float* for vsFrac, vmsFrac double* for vdFrac, vmdFrac |
Pointer to an array that contains the output vector y. |
The function computes a signed fractional part for each vector element.

| Argument | Result | Exception |
|---|---|---|
| +0 | +0 | |
| -0 | -0 | |
| +∞ | +0 | |
| -∞ | -0 | |
| SNAN | QNAN | INVALID |
| QNAN | QNAN |