# How mixed condition deal in fem through free fem coding

**URL:** <https://community.freefem.org/t/how-mixed-condition-deal-in-fem-through-free-fem-coding/521>\
**Category:** General Discussion\
**Created:** [July 25, 2020, 9:39pm UTC](https://community.freefem.org/t/how-mixed-condition-deal-in-fem-through-free-fem-coding/521 "2020-07-25T21:39:47Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Shah](https://avatars.discourse-cdn.com/v4/letter/s/f4b2a3/32.png) [@Shah](https://community.freefem.org/u/Shah)\
**Post date:** [July 25, 2020, 9:39pm UTC](https://community.freefem.org/t/how-mixed-condition-deal-in-fem-through-free-fem-coding/521/1 "2020-07-25T21:39:47Z")

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How free fem coding working for mixed and Neumann condition?

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**Author:** ![rmanohar91](https://avatars.discourse-cdn.com/v4/letter/r/ea666f/32.png) [@rmanohar91](https://community.freefem.org/u/rmanohar91)\
**Post date:** [August 12, 2024, 10:16pm UTC](https://community.freefem.org/t/how-mixed-condition-deal-in-fem-through-free-fem-coding/521/2 "2024-08-12T22:16:43Z")

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Can it be possible to implement the mixed boundary conditions in DG? I have implemented similar to continuous Galerkin but I did not get the good error at all neither solution. Is there a way to implement the Neumann boundary in the finite element spaces?