MathF.FusedMultiplyAdd(Single, Single, Single) Method
Definition
Important
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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 -> single
Public Shared Function FusedMultiplyAdd (x As Single, y As Single, z As Single) As Single
Parameters
- 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.
Applies to
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