# Non linear coupled system

**URL:** <https://community.freefem.org/t/non-linear-coupled-system/692>\
**Category:** General Discussion\
**Created:** [December 15, 2020, 7:20pm UTC](https://community.freefem.org/t/non-linear-coupled-system/692 "2020-12-15T19:20:18Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Aicha](https://avatars.discourse-cdn.com/v4/letter/a/ec9cab/32.png) [@Aicha](https://community.freefem.org/u/Aicha)\
**Post date:** [December 15, 2020, 7:20pm UTC](https://community.freefem.org/t/non-linear-coupled-system/692/1 "2020-12-15T19:20:18Z")

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Hi,  
i search an example to resolve a coupled non linear system with FreeFem++.

Thank you in advance.

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**Author:** ![frederichecht](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.freefem.org/frederichecht/32/15_2.png) [@frederichecht](https://community.freefem.org/u/frederichecht)\
**Post date:** [December 15, 2020, 8:24pm UTC](https://community.freefem.org/t/non-linear-coupled-system/692/2 "2020-12-15T20:24:54Z")

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Simple take Navier Stokes exemple in thé source exemple for example