# Squiggly line under #include \<math.h\> in example projects

**URL:** https://qa.fmod.com/t/squiggly-line-under-include-math-h-in-example-projects/16638
**Category:** FMOD Engine
**Tags:** cpp
**Created:** [January 14, 2021, 1:29am UTC](https://qa.fmod.com/t/squiggly-line-under-include-math-h-in-example-projects/16638 "2021-01-14T01:29:58Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![klater](https://avatars.discourse-cdn.com/v4/letter/k/bcef8e/32.png) [@klater](https://qa.fmod.com/u/klater)
#### Post date: [January 14, 2021, 1:29am UTC](https://qa.fmod.com/t/squiggly-line-under-include-math-h-in-example-projects/16638/1 "2021-01-14T01:29:58Z")

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sorry if this is a dumb question because I’m very new to C++ programming, but it’s showing squiggly lines at multiple places when I open the projects in VS2019. They’re all cpp projects, but if I’m not mistaken math.h is from the standard C library, right?

[image|171x90](https://qa.fmod.com/uploads/short-url/4Xp6Thyqnk2VUVZm7dYcke5fbUB.png)

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### Author: ![mathew](https://yyz2.discourse-cdn.com/flex036/user_avatar/qa.fmod.com/mathew/32/431_2.png) [@mathew](https://qa.fmod.com/u/mathew)
#### Post date: [January 14, 2021, 11:41pm UTC](https://qa.fmod.com/t/squiggly-line-under-include-math-h-in-example-projects/16638/2 "2021-01-14T23:41:40Z")

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Yes math.h is from the standard library, if Visual Studio cannot find that header, perhaps you need to check your Visual Studio install has the necessary workloads for C/C++ development.

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### Author: ![klater](https://avatars.discourse-cdn.com/v4/letter/k/bcef8e/32.png) [@klater](https://qa.fmod.com/u/klater)
#### Post date: [January 15, 2021, 6:07am UTC](https://qa.fmod.com/t/squiggly-line-under-include-math-h-in-example-projects/16638/3 "2021-01-15T06:07:31Z")

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got it. I solved it by changing the C Language Standard to the latest under projects’ properties.