The following subclauses describe components for complex number types, random number generation, numeric (n-at-a-time) arrays, generalized numeric algorithms, and mathematical functions for floating-point types, as summarized in Table 101.
| Subclause | Header(s) | |
| [numerics.defns] | Definitions | |
| [numeric.requirements] | Requirements | |
| [cfenv] | Floating-point environment | <cfenv> |
| [complex.numbers] | Complex numbers | <complex> |
| [rand] | Random number generation | <random> |
| [numarray] | Numeric arrays | <valarray> |
| [numeric.ops] | Generalized numeric operations | <numeric> |
| [c.math] | Mathematical functions for | <cmath> |
| floating-point types | <cstdlib> | |