# \#symbolicutils

**URL:** https://discourse.julialang.org/tag/symbolicutils/1451.md

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## [Introducing SymJul: Symbolic Analysis for Differential Equations](https://discourse.julialang.org/t/introducing-symjul-symbolic-analysis-for-differential-equations/126035)

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**Author:** [@erny123](https://discourse.julialang.org/u/erny123)\
**Replies:** 14\
**Last updated:** [February 20, 2025, 1:26am UTC](https://discourse.julialang.org/t/introducing-symjul-symbolic-analysis-for-differential-equations/126035 "2025-02-20T01:26:00Z")

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Dear all, I’d like to introduce: SymJul (not married to the name) I’m working on a lot of theory for new nonlinear systems. Sometimes, discretization of the full ODE or PDE works but takes too many computational reso…

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## [Symbolic rewriter rules for symbolic functions](https://discourse.julialang.org/t/symbolic-rewriter-rules-for-symbolic-functions/123131)

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**Author:** [@erny123](https://discourse.julialang.org/u/erny123)\
**Replies:** 2\
**Last updated:** [November 28, 2024, 8:13pm UTC](https://discourse.julialang.org/t/symbolic-rewriter-rules-for-symbolic-functions/123131 "2024-11-28T20:13:42Z")

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I have something simple that there seems to be no answer anywhere. I make a symbolic function and none of the re-writing rules work on it. using SymbolicUtils using Symbolics using Latexify using Plots using LaTeXString…

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## [Help in accelerating constructing Symbolic jacobian?](https://discourse.julialang.org/t/help-in-accelerating-constructing-symbolic-jacobian/104701)

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**Author:** [@yewalenikhil65](https://discourse.julialang.org/u/yewalenikhil65)\
**Replies:** 9\
**Last updated:** [October 10, 2023, 1:19am UTC](https://discourse.julialang.org/t/help-in-accelerating-constructing-symbolic-jacobian/104701 "2023-10-10T01:19:06Z")

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Can anyone help me accelerate/optimize this computation of symbolic computation of Jacobian? I am on latest version of Symbolics and julia 1.9.3. using Symbolics using ToeplitzMatrices N= 280; a = Symbolics.variable…