Explore the full potential of C++ by mastering the standard library.

Become a C++ Programmer

The C++ standard library is a collection of all the tools and utilities available in C++. It received its latest update in 2017, known as C++17. The update introduces many new features that further optimize our code. This module will help us fully grasp C++ and use it to its full potential.

C++ Standard Library

C++ inherited many numeric functions from C. They need the header [< cmath >](http://en.cppreference.com/w/cpp/numeric/math). The table below shows the names of these functions:

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| `pow` | `sin` | `tanh` | `asinh` | `fabs` 
| `exp` | `cos` | `asin` | `aconsh` | `fmod` 
| `sqrt` | `tan` | `acos` | `atanh` | `frexp` 
| `log` |`sinh` | `atan` | `ceil` | `ldexp` 
| `log10` | `cosh` | `atan2` | `floor` | `modf` |
 Mathematical functions in the cmath library 

Additionally, C++ inherits further mathematical functions from C. They are defined in the header [< cstdlib >](http://en.cppreference.com/w/cpp/numeric/math). Once more, the names of mathematical functions in < cstdlib >:

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| `abs` | `llabs` | `ldiv` | `srand` |
| `labs` | `div` | `lldiv` | `rand` | 
 Mathematical functions in < cstdlib > 


All functions for integers are available for the types `int`, `long` and `long long`; all functions for floating-point numbers are available for the types `float`, `double`, and `long double`.

The numeric functions need to be qualified with the namespace `std`.

As C++ evolved from C, many of the functions have been passed down to the new language. We'll discuss them in this lesson.

Functions Inherited from C