Vector64.FusedMultiplyAdd Method

Definition

Namespace:

System.Runtime.Intrinsics

Assembly:

System.Runtime.Intrinsics.dll

Overloads

FusedMultiplyAdd(Vector64<Double>, Vector64<Double>, Vector64<Double>)	Computes (left * right) + addend, rounded as one ternary operation.
FusedMultiplyAdd(Vector64<Single>, Vector64<Single>, Vector64<Single>)	Computes (left * right) + addend, rounded as one ternary operation.

FusedMultiplyAdd(Vector64<Double>, Vector64<Double>, Vector64<Double>)

Computes (left * right) + addend, rounded as one ternary operation.

C#

public static System.Runtime.Intrinsics.Vector64<double> FusedMultiplyAdd(System.Runtime.Intrinsics.Vector64<double> left, System.Runtime.Intrinsics.Vector64<double> right, System.Runtime.Intrinsics.Vector64<double> addend);

Parameters

left

Vector64<Double>

The vector to be multiplied with right.

right

Vector64<Double>

The vector to be multiplied with left.

addend

Vector64<Double>

The vector to be added to the result of left multiplied by right.

Returns

Vector64<Double>

(left * right) + addend, rounded as one ternary operation.

Remarks

This computes (left * right) as if to infinite precision, adds addend 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 (left * right) as if to infinite precision, round the result to the nearest representable value, add addend to the rounded result as if to infinite precision, and finally round to the nearest representable value.

FusedMultiplyAdd(Vector64<Single>, Vector64<Single>, Vector64<Single>)

Computes (left * right) + addend, rounded as one ternary operation.

C#

public static System.Runtime.Intrinsics.Vector64<float> FusedMultiplyAdd(System.Runtime.Intrinsics.Vector64<float> left, System.Runtime.Intrinsics.Vector64<float> right, System.Runtime.Intrinsics.Vector64<float> addend);

Parameters

left

Vector64<Single>

The vector to be multiplied with right.

right

Vector64<Single>

The vector to be multiplied with left.

addend

Vector64<Single>

The vector to be added to the result of left multiplied by right.

Returns

Vector64<Single>

(left * right) + addend, rounded as one ternary operation.

Remarks

This computes (left * right) as if to infinite precision, adds addend 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 (left * right) as if to infinite precision, round the result to the nearest representable value, add addend to the rounded result as if to infinite precision, and finally round to the nearest representable value.