# Sum a variable along the z axis

**URL:** https://discourse.paraview.org/t/sum-a-variable-along-the-z-axis/11944
**Category:** ParaView Support
**Created:** [April 21, 2023, 5:52am UTC](https://discourse.paraview.org/t/sum-a-variable-along-the-z-axis/11944 "2023-04-21T05:52:10Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![Huan\_Zhang](https://discourse.paraview.org/user_avatar/discourse.paraview.org/huan_zhang/32/9781_2.png) [@Huan\_Zhang](https://discourse.paraview.org/u/Huan_Zhang)
#### Post date: [April 21, 2023, 5:52am UTC](https://discourse.paraview.org/t/sum-a-variable-along-the-z-axis/11944/1 "2023-04-21T05:52:10Z")

</div>

Dear all,

I have a 3d domain in paraview. Now I would like to sum or integrate a variable along the z axis, and then display the results on a slice, e.g., slice z= 0. Is there any way to achieve this?

Thanks,  
Huan