# @constraint with ForwardDiff.gradient

**URL:** <https://discourse.julialang.org/t/constraint-with-forwarddiff-gradient/104949>\
**Category:** Optimization (Mathematical)\
**Tags:** jump, forwarddiff\
**Created:** [October 14, 2023, 10:34am UTC](https://discourse.julialang.org/t/constraint-with-forwarddiff-gradient/104949 "2023-10-14T10:34:17Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![justinberi](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/justinberi/32/202466_2.png) [@justinberi](https://discourse.julialang.org/u/justinberi)\
**Post date:** [October 16, 2023, 1:05pm UTC](https://discourse.julialang.org/t/constraint-with-forwarddiff-gradient/104949/4 "2023-10-16T13:05:56Z")

</div>

[What is the difference between nonlinear “functions with vector outputs” and nonlinear “operators with vector outputs”?](https://discourse.julialang.org/t/what-is-the-difference-between-nonlinear-functions-with-vector-outputs-and-nonlinear-operators-with-vector-outputs/105012)

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