_Dot4dV (Windows CE 5.0)
Computes the inner product of a pair of four-dimensional vectors.
float _Dot4dV( float* vector1, float* vector2);
Parameters
- vector1
[in] Pointer to a four-dimensional source vector. - vector2
[in] Pointer to a four-dimensional destination vector.
Return Values
The scalar resulting from the inner product.
Remarks
The following code example shows how to compute the inner product of four-dimensional vectors.
/***********************************************************/
#include <stdio.h>
#include <shintr.h>
void main()
{
float retval;
float v1[4] = {1.0, 2.0, 3.0, 4.0};
float v2[4] = {2.0, 3.0, 4.0, 5.0};
retval = _Dot4dV(v1, v2);
printf("retval=%f\n", retval);
}
This example results in the following output.
retval=40.000000
Requirements
Header: shintr.h.
See Also
Intrinsic Functions for Renesas Microprocessors | _Dot3dVW0 | _Dot3dVW1
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