# Variational formulation involving jumps

**URL:** <https://community.freefem.org/t/variational-formulation-involving-jumps/273>\
**Category:** General Discussion\
**Created:** [February 26, 2020, 11:11am UTC](https://community.freefem.org/t/variational-formulation-involving-jumps/273 "2020-02-26T11:11:16Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![MCL](https://avatars.discourse-cdn.com/v4/letter/m/ed8c4c/32.png) [@MCL](https://community.freefem.org/u/MCL)\
**Post date:** [February 26, 2020, 11:11am UTC](https://community.freefem.org/t/variational-formulation-involving-jumps/273/1 "2020-02-26T11:11:16Z")

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Hello everyone !

I want to solve a variational problem with the form  
a(u,v)=L(v) where L(v)=int1d(Th,CurveInsideTh)(jump(w)\*v)  
w is a discontinuous function along the curve (let us consider w as a P0 function)  
Is it possible to do this?

thanks !