# Has anyone ever done a topology optimization example like 99 line with FF + +?

**URL:** <https://community.freefem.org/t/has-anyone-ever-done-a-topology-optimization-example-like-99-line-with-ff/1956>\
**Category:** General Discussion\
**Created:** [August 24, 2022, 6:35am UTC](https://community.freefem.org/t/has-anyone-ever-done-a-topology-optimization-example-like-99-line-with-ff/1956 "2022-08-24T06:35:37Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Yangshen](https://avatars.discourse-cdn.com/v4/letter/y/838e76/32.png) [@Yangshen](https://community.freefem.org/u/Yangshen)\
**Post date:** [August 24, 2022, 6:35am UTC](https://community.freefem.org/t/has-anyone-ever-done-a-topology-optimization-example-like-99-line-with-ff/1956/1 "2022-08-24T06:35:37Z")

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Hello everyone，  
I’m a novice and just got to know FF + +. I want to get some examples about topology optimization.

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**Author:** ![prj](https://avatars.discourse-cdn.com/v4/letter/p/ecae2f/32.png) [@prj](https://community.freefem.org/u/prj)\
**Post date:** [August 24, 2022, 9:12am UTC](https://community.freefem.org/t/has-anyone-ever-done-a-topology-optimization-example-like-99-line-with-ff/1956/2 "2022-08-24T09:12:53Z")

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There are so many examples, just use Google. See, e.g., [An 89-line code for geometrically nonlinear topology optimization written in FreeFEM | SpringerLink](https://link.springer.com/article/10.1007/s00158-020-02733-x)

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**Author:** ![Yangshen](https://avatars.discourse-cdn.com/v4/letter/y/838e76/32.png) [@Yangshen](https://community.freefem.org/u/Yangshen)\
**Post date:** [August 24, 2022, 10:18am UTC](https://community.freefem.org/t/has-anyone-ever-done-a-topology-optimization-example-like-99-line-with-ff/1956/3 "2022-08-24T10:18:31Z")

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Thank you very much.This looks good.