# How can I export MASS and STIFFNESS matrices

**URL:** <https://calculix.discourse.group/t/how-can-i-export-mass-and-stiffness-matrices/128>\
**Category:** Uncategorized\
**Created:** [August 14, 2020, 11:13am UTC](https://calculix.discourse.group/t/how-can-i-export-mass-and-stiffness-matrices/128 "2020-08-14T11:13:42Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![tmfx25](https://avatars.discourse-cdn.com/v4/letter/t/73ab20/32.png) [@tmfx25](https://calculix.discourse.group/u/tmfx25)\
**Post date:** [August 14, 2020, 11:13am UTC](https://calculix.discourse.group/t/how-can-i-export-mass-and-stiffness-matrices/128/1 "2020-08-14T11:13:42Z")

</div>

Hello,

How can I export MASS and STIFFNESS matrices in Calculix for a \*Dynamic calculation?

Thank you

---

<div class="post-metadata">

**Author:** ![Nidish96](https://avatars.discourse-cdn.com/v4/letter/n/c68b51/32.png) [@Nidish96](https://calculix.discourse.group/u/Nidish96)\
**Post date:** [August 15, 2020, 10:07pm UTC](https://calculix.discourse.group/t/how-can-i-export-mass-and-stiffness-matrices/128/2 "2020-08-15T22:07:37Z")

</div>

Use `*FREQUENCY, SOLVER=MATRIXSTORAGE` - that will output the mass and stiffness matrices and a coordinate list file that you can use to determine the entries of various nodes and DoFs.