# Muladd! (useful?)

**URL:** https://discourse.julialang.org/t/muladd-useful/89517
**Category:** Performance
**Tags:** linearalgebra
**Created:** [October 30, 2022, 7:54am UTC](https://discourse.julialang.org/t/muladd-useful/89517 "2022-10-30T07:54:45Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![photor](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/photor/32/14343_2.png) [@photor](https://discourse.julialang.org/u/photor)
#### Post date: [October 30, 2022, 7:54am UTC](https://discourse.julialang.org/t/muladd-useful/89517/1 "2022-10-30T07:54:45Z")

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Hi, I know there is the muladd function, but it seems there isn’t an in-place version muladd! of it?

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### Author: ![jling](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/jling/32/212909_2.png) [@jling](https://discourse.julialang.org/u/jling)
#### Post date: [October 30, 2022, 7:57am UTC](https://discourse.julialang.org/t/muladd-useful/89517/2 "2022-10-30T07:57:00Z")

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> <https://github.com/JuliaLang/julia/blob/v1.8.2/stdlib/LinearAlgebra/src/matmul.jl#L246>