# Compute values at certain points

**URL:** <https://community.freefem.org/t/compute-values-at-certain-points/1378>\
**Category:** General Discussion\
**Created:** [December 9, 2021, 8:23pm UTC](https://community.freefem.org/t/compute-values-at-certain-points/1378 "2021-12-09T20:23:21Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![s.h.tong](https://avatars.discourse-cdn.com/v4/letter/s/4da419/32.png) [@s.h.tong](https://community.freefem.org/u/s.h.tong)\
**Post date:** [December 9, 2021, 8:23pm UTC](https://community.freefem.org/t/compute-values-at-certain-points/1378/1 "2021-12-09T20:23:21Z")

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I want to compute the value of u at several certain points. Where can I add the positions? Thanks

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<div class="post-metadata">

**Author:** ![julienG](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.freefem.org/julieng/32/222_2.png) [@julienG](https://community.freefem.org/u/julienG)\
**Post date:** [December 10, 2021, 5:34am UTC](https://community.freefem.org/t/compute-values-at-certain-points/1378/2 "2021-12-10T05:34:22Z")

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```auto
cout << u(x1,y1) <<endl;

```