# Sparse matrix error with forward diff

**URL:** <https://discourse.julialang.org/t/sparse-matrix-error-with-forward-diff/108170>\
**Category:** General Usage\
**Tags:** forwarddiff, sparse\
**Created:** [December 30, 2023, 1:39am UTC](https://discourse.julialang.org/t/sparse-matrix-error-with-forward-diff/108170 "2023-12-30T01:39:08Z")\
**Posts on this page:** 1\
**Showing post:** 13

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**Author:** ![stevengj](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/stevengj/32/71_2.png) [@stevengj](https://discourse.julialang.org/u/stevengj)\
**Post date:** [December 31, 2023, 12:33pm UTC](https://discourse.julialang.org/t/sparse-matrix-error-with-forward-diff/108170/13 "2023-12-31T12:33:13Z")

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> [@rocco\_sprmnt21](#):
>
> we always end up in more or less the same problem

See [Sparse A\B](https://discourse.julialang.org/t/sparse-a-b/107725)

To do this efficiently you’ll may need to think carefully about your particular problem as I noted [above](https://discourse.julialang.org/t/sparse-matrix-error-with-forward-diff/108170/8).

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