# Adding acos, asin and atan to the math expressions
**URL:** https://mworks.discourse.group/t/adding-acos-asin-and-atan-to-the-math-expressions/190
**Category:** Support
**Created:** [March 29, 2020, 6:48pm UTC](https://mworks.discourse.group/t/adding-acos-asin-and-atan-to-the-math-expressions/190 "2020-03-29T18:48:07Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@cstawarz](https://mworks.discourse.group/u/cstawarz)
#### Post date: [March 29, 2020, 6:48pm UTC](https://mworks.discourse.group/t/adding-acos-asin-and-atan-to-the-math-expressions/190/1 "2020-03-29T18:48:07Z")
Hallo Chris,
I have a tiny question/suggestion 🙂 : Is it possible to add arcus cosinus and the arcus sinus to the mathematical expressions ([Expressions — MWorks 0.12.dev documentation](https://mworks.github.io/documentation/latest/expressions/index.html))? That would be very helpful (for some tiny calculations).
Lieben Gruß aus Göttingen
Ralf
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### Author:  [@cstawarz](https://mworks.discourse.group/u/cstawarz)
#### Post date: [March 31, 2020, 2:38pm UTC](https://mworks.discourse.group/t/adding-acos-asin-and-atan-to-the-math-expressions/190/2 "2020-03-31T14:38:37Z")
[Done](https://github.com/mworks/mworks/commit/0234164c1be7ffd27d68cadc33ddb103a66a77a6). Stay well!
Chris
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### Author:  [@cstawarz](https://mworks.discourse.group/u/cstawarz)
#### Post date: [April 1, 2020, 7:20pm UTC](https://mworks.discourse.group/t/adding-acos-asin-and-atan-to-the-math-expressions/190/3 "2020-04-01T19:20:46Z")
😃 (y) Super. Thank you!
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### Author:  [@cstawarz](https://mworks.discourse.group/u/cstawarz)
#### Post date: [July 19, 2022, 8:29pm UTC](https://mworks.discourse.group/t/adding-acos-asin-and-atan-to-the-math-expressions/190/4 "2022-07-19T20:29:17Z")