# Isoparametric mesh

**URL:** <https://community.freefem.org/t/isoparametric-mesh/206>\
**Category:** General Discussion\
**Created:** [January 2, 2020, 4:56pm UTC](https://community.freefem.org/t/isoparametric-mesh/206 "2020-01-02T16:56:38Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![amina](https://avatars.discourse-cdn.com/v4/letter/a/0ea827/32.png) [@amina](https://community.freefem.org/u/amina)\
**Post date:** [January 2, 2020, 4:56pm UTC](https://community.freefem.org/t/isoparametric-mesh/206/1 "2020-01-02T16:56:38Z")

</div>

Hello evryone,

I am trying to figure out how to implement an iso-parametric mesh. By that I mean that my boundaries are curved and that I am seeking for an integral computation within mass and stifness matrices that takes the curves into account, and doesn’t consider the curved geometry as a set of small linear segments defined by a set of boundary nodes deduced from the initial curve introduced as an input when defining mesh boundaries.  
More precisely, If I define the boundary by circle, I need the integrals on the boundary elements to take the curved edge into account, and not replace it by a line.

Thanks!  
Amina.