# How to implement a conditional over an exogenous parameter in a non linear constraint in JuMP?

**URL:** https://discourse.julialang.org/t/how-to-implement-a-conditional-over-an-exogenous-parameter-in-a-non-linear-constraint-in-jump/82177
**Category:** Optimization (Mathematical)
**Tags:** jump
**Created:** [June 3, 2022, 10:12am UTC](https://discourse.julialang.org/t/how-to-implement-a-conditional-over-an-exogenous-parameter-in-a-non-linear-constraint-in-jump/82177 "2022-06-03T10:12:05Z")
**Posts on this page:** 1
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### Author: ![jd-foster](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/jd-foster/32/35824_2.png) [@jd-foster](https://discourse.julialang.org/u/jd-foster)
#### Post date: [June 3, 2022, 12:14pm UTC](https://discourse.julialang.org/t/how-to-implement-a-conditional-over-an-exogenous-parameter-in-a-non-linear-constraint-in-jump/82177/2 "2022-06-03T12:14:00Z")

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How about using `ifelse`?

See [How to implement a piece-wise defined function in JuMP - #4 by odow](https://discourse.julialang.org/t/how-to-implement-a-piece-wise-defined-function-in-jump/76095/4)

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