# Integral from (0,0) to (x,y)

**URL:** https://community.freefem.org/t/integral-from-0-0-to-x-y/2998
**Category:** General Discussion
**Created:** [February 25, 2024, 2:31pm UTC](https://community.freefem.org/t/integral-from-0-0-to-x-y/2998 "2024-02-25T14:31:13Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![marchywka](https://avatars.discourse-cdn.com/v4/letter/m/ee59a6/32.png) [@marchywka](https://community.freefem.org/u/marchywka)
#### Post date: [February 25, 2024, 2:31pm UTC](https://community.freefem.org/t/integral-from-0-0-to-x-y/2998/1 "2024-02-25T14:31:13Z")

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I wanted to implement some of the integral solutions shown here,  
in particular the non-homogeneous Dirichlet integral,

[https://en.wikipedia.org/wiki/Heat\_equation](https://en.wikipedia.org/wiki/Heat_equation)

Is there some way to do that with int2d?  
I guess I could make a matrix to do it but it sounds involved.

Thanks.