# How to use the rule set from ChainRules.jl?

**URL:** <https://discourse.julialang.org/t/how-to-use-the-rule-set-from-chainrules-jl/93658>\
**Category:** Optimization (Mathematical)\
**Tags:** autodiff\
**Created:** [January 27, 2023, 7:05pm UTC](https://discourse.julialang.org/t/how-to-use-the-rule-set-from-chainrules-jl/93658 "2023-01-27T19:05:25Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![odow](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/odow/32/28685_2.png) [@odow](https://discourse.julialang.org/u/odow)\
**Post date:** [January 30, 2023, 10:10pm UTC](https://discourse.julialang.org/t/how-to-use-the-rule-set-from-chainrules-jl/93658/2 "2023-01-30T22:10:59Z")

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Is this a different question to [How to access the rule set of ChainRules.jl?](https://discourse.julialang.org/t/how-to-access-the-rule-set-of-chainrules-jl/93534)?

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_[View the full topic](https://discourse.julialang.org/t/how-to-use-the-rule-set-from-chainrules-jl/93658)._