# \#multiplicativeinvers

**URL:** https://discourse.julialang.org/tag/multiplicativeinvers/1850.md

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## [When does it make sense to use \`Base.MultiplicativeInverses\`](https://discourse.julialang.org/t/when-does-it-make-sense-to-use-base-multiplicativeinverses/131711)

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**Author:** [@kunzaatko](https://discourse.julialang.org/u/kunzaatko)\
**Replies:** 6\
**Last updated:** [August 19, 2025, 4:18pm UTC](https://discourse.julialang.org/t/when-does-it-make-sense-to-use-base-multiplicativeinverses/131711 "2025-08-19T16:18:05Z")

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When does it make sense to use the Base.MultiplicativeInverses? I am considering storing the MultiplicativeInverse in my AbstractArray subtype which uses some index calculations based on some fields and the parent array.…