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Math.FusedMultiplyAdd(Double, Double, Double) Method

Definition

Namespace:
System
Assemblies:
netstandard.dll, System.Runtime.dll
Assembly:
System.Runtime.Extensions.dll
Source:
Math.cs
Source:
Math.cs
Source:
Math.cs
Source:
Math.cs
Source:
Math.cs

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 double FusedMultiplyAdd(double x, double y, double z);
public static double FusedMultiplyAdd(double x, double y, double z);
static member FusedMultiplyAdd : double * double * double -> double
Public Shared Function FusedMultiplyAdd (x As Double, y As Double, z As Double) As Double

Parameters

x
Double

The number to be multiplied with y.

y
Double

The number to be multiplied with x.

z
Double

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 precision, 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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