The C++ numerics library includes common mathematical functions and types, as well as optimized numeric arrays and support for random number generation.
Common mathematical functions
The header cmath provides standard C library mathematical functions such as std::fabs, std::sqrt, and std::sin.
Complex numbers
| Defined in header <complex> | |
|---|---|
| a complex number type (class template) | |
Numeric arrays
| Defined in header <valarray> | |
|---|---|
| numeric arrays and array slices (class template) | |
Generic numeric operations
| Defined in header <numeric> | |
|---|---|
| (C++11) | fills a range with successive increments of the starting value (function template) |
| sums up a range of elements (function template) | |
| computes the inner product of two ranges of elements (function template) | |
| computes the differences between adjacent elements in a range (function template) | |
| computes the partial sum of a range of elements (function template) | |
Pseudo-random number generation
The header random defines pseudo-random number generators and numerical distributions. The header cstdlib also includes C-style random number generation via std::srand and std::rand.
Compile time rational arithmetic (since C++11)
The header ratio provides types and functions for manipulating and storing compile-time ratios.
Floating-point environment
The header fenv defines flags and functions related to exceptional floating-point state, such as overflow and division by zero.
See also
C documentation for Numerics |
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