# User defined functions with AmplNLWriter

**URL:** https://discourse.julialang.org/t/user-defined-functions-with-amplnlwriter/71482
**Category:** Optimization (Mathematical)
**Tags:** jump
**Created:** [November 15, 2021, 8:30am UTC](https://discourse.julialang.org/t/user-defined-functions-with-amplnlwriter/71482 "2021-11-15T08:30:31Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![ver\_kh](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ver_kh/32/27595_2.png) [@ver\_kh](https://discourse.julialang.org/u/ver_kh)
#### Post date: [November 15, 2021, 8:30am UTC](https://discourse.julialang.org/t/user-defined-functions-with-amplnlwriter/71482/1 "2021-11-15T08:30:31Z")

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Can user-defined functions be used in JuMP model with AmplNLWriter?

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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: [November 15, 2021, 8:38am UTC](https://discourse.julialang.org/t/user-defined-functions-with-amplnlwriter/71482/2 "2021-11-15T08:38:28Z")

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No