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Multiply–accumulate operation

In computing, especially digital signal processing, the multiply–accumulate (MAC) or multiply–add (MAD) operation is a common step that computes the product of two numbers and adds that product to an accumulator. The hardware unit that performs the operation is known as a multiplier–accumulator (MAC unit); the operation itself is also often called a MAC…

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Fused multiply–add

Fused operationDot productMatrix multiplicationPolynomial evaluationHorner's rule
65 related topics

In floating-point arithmetic

IntegersModuloPower of twoPrecisionAssociative
7 related topics

Variants with two or more roundings

Digital Equipment CorporationVAXX87
3 related topics

Overview

ComputingDigital signal processingAccumulatorFloating-pointRoundings
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In floating-point arithmetic

Fused multiply–add

Variants with two or more roundings

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Multiply–accumulate operation

Nodes91
Edges90
Triples0
Avg. degree1.98
Density0.021978
Components1

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multiply add operation fma mac fused rounding floating-point instruction accumulator result single two multiplication performed also step using digital product

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