# Standard library header <ctgmath> (C++11)(until C++20), <tgmath.h> (C++11)

From cppreference.com
< cpp‎ | header

This header was originally in the C standard library as `<tgmath.h>`.

This header is part of the numeric library.

### Includes
<ccomplex> (C++11)(deprecated in C++17)(removed in C++20) | Simply includes the header `<complex>`
<cmath> (C++11) | Common mathematics functions

### Notes

`<ctgmath>` is deprecated in C++17 and removed in C++20. Corresponding `<tgmath.h>` is still available in C++20.

Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/header/ctgmath&oldid=143492"