MathF.FusedMultiplyAdd(Single, Single, Single) Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Returns (x * y) + z, rounded as one ternary operation.
public:
static float FusedMultiplyAdd(float x, float y, float z);public static float FusedMultiplyAdd (float x, float y, float z);static member FusedMultiplyAdd : single * single * single -> singlePublic Shared Function FusedMultiplyAdd (x As Single, y As Single, z As Single) As SingleParameters
- x
- Single
The number to be multiplied with y.
- y
- Single
The number to be multiplied with x.
- z
- Single
The number to be added to the result of x multiplied by y.
Returns
(x * y) + z, rounded as one ternary operation.
Remarks
This computes (x * y) as if to infinite precision, adds z to that result as if to infinite precision, and finally rounds to the nearest representable value.
This differs from the non-fused sequence which would compute (x * y) as if to infinite preicision, round the result to the nearest representable value, add 'z' to the rounded result as if to infinite precision, and finally round to the nearest representable value.
