# Using a sparse Hessian in Optim.jl

**URL:** https://discourse.julialang.org/t/using-a-sparse-hessian-in-optim-jl/121768
**Category:** Optimization (Mathematical)
**Created:** [October 25, 2024, 11:01pm UTC](https://discourse.julialang.org/t/using-a-sparse-hessian-in-optim-jl/121768 "2024-10-25T23:01:41Z")
**Posts on this page:** 2
**Page:** 2

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### Author: ![gdalle](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/gdalle/32/27854_2.png) [@gdalle](https://discourse.julialang.org/u/gdalle)
#### Post date: [October 27, 2024, 4:34pm UTC](https://discourse.julialang.org/t/using-a-sparse-hessian-in-optim-jl/121768/22 "2024-10-27T16:34:50Z")

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Sounds like a plan!

I’m gonna go ahead and tag @pkofod on this one, hopefully he has more insights.

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### Author: ![pkofod](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/pkofod/32/2179_2.png) [@pkofod](https://discourse.julialang.org/u/pkofod)
#### Post date: [October 29, 2024, 1:05pm UTC](https://discourse.julialang.org/t/using-a-sparse-hessian-in-optim-jl/121768/23 "2024-10-29T13:05:02Z")

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I think I would have to try the example myself to know. It’s hard to say. Could well be a bug. What’s the smallest example I could run @rsenne ?

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