Common mathematical functions

From cppreference.com
< cpp‎ | numeric
 
 
 
Common mathematical functions
Functions
Basic operations
(C++11)
(C++11)
(C++11)
(C++11)
(C++11)
(C++11)
(C++11)(C++11)(C++11)
Exponential functions
(C++11)
(C++11)
(C++11)
(C++11)
Power functions
(C++11)
(C++11)
Trigonometric and hyperbolic functions
(C++11)
(C++11)
(C++11)
Error and gamma functions
(C++11)
(C++11)
(C++11)
(C++11)
Nearest integer floating point operations
(C++11)(C++11)(C++11)
(C++11)
(C++11)
(C++11)(C++11)(C++11)
Floating point manipulation functions
(C++11)(C++11)
(C++11)
(C++11)
(C++11)(C++11)
(C++11)
Classification/Comparison
(C++11)
(C++11)
(C++11)
(C++11)
(C++11)
(C++11)
(C++11)
(C++11)
Macro constants
(C++11)(C++11)(C++11)(C++11)(C++11)
 

Functions

Defined in header <cstdlib>
computes absolute value of an integral value (|x|)
(function)
computes quotient and remainder of integer division
(function)
Defined in header <cinttypes>
computes absolute value of an integral value (|x|)
(function)
computes quotient and remainder of integer division
(function)
Defined in header <cmath>
Basic operations
absolute value of a floating point value (|x|)
(function)
(C++11)(C++11)
remainder of the floating point division operation
(function)
(C++11)(C++11)(C++11)
signed remainder of the division operation
(function)
(C++11)(C++11)(C++11)
signed remainder as well as the three last bits of the division operation
(function)
(C++11)(C++11)(C++11)
fused multiply-add operation
(function)
(C++11)(C++11)(C++11)
larger of two floating-point values
(function)
(C++11)(C++11)(C++11)
smaller of two floating point values
(function)
(C++11)(C++11)(C++11)
positive difference of two floating point values (max(0, x-y))
(function)
(C++11)(C++11)(C++11)
not-a-number (NaN)
(function)
Exponential functions
(C++11)(C++11)
returns e raised to the given power (ex)
(function)
(C++11)(C++11)(C++11)
returns 2 raised to the given power (2x)
(function)
(C++11)(C++11)(C++11)
returns e raised to the given power, minus one (ex-1)
(function)
(C++11)(C++11)
computes natural (base e) logarithm (ln(x))
(function)
(C++11)(C++11)
computes common (base 10) logarithm (log10(x))
(function)
(C++11)(C++11)(C++11)
base 2 logarithm of the given number (log2(x))
(function)
(C++11)(C++11)(C++11)
natural logarithm (to base e) of 1 plus the given number (ln(1+x))
(function)
Power functions
(C++11)(C++11)
raises a number to the given power (xy)
(function)
(C++11)(C++11)
computes square root (x)
(function)
(C++11)(C++11)(C++11)
computes cubic root (3x)
(function)
(C++11)(C++11)(C++11)
computes square root of the sum of the squares of two or three (C++17) given numbers (x2
+y2
), (x2
+y2
+z2
)
(function)
Trigonometric functions
(C++11)(C++11)
computes sine (sin(x))
(function)
(C++11)(C++11)
computes cosine (cos(x))
(function)
(C++11)(C++11)
computes tangent (tan(x))
(function)
(C++11)(C++11)
computes arc sine (arcsin(x))
(function)
(C++11)(C++11)
computes arc cosine (arccos(x))
(function)
(C++11)(C++11)
computes arc tangent (arctan(x))
(function)
(C++11)(C++11)
arc tangent, using signs to determine quadrants
(function)
Hyperbolic functions
(C++11)(C++11)
computes hyperbolic sine (sinh(x))
(function)
(C++11)(C++11)
computes hyperbolic cosine (cosh(x))
(function)
(C++11)(C++11)
computes hyperbolic tangent (tanh(x))
(function)
(C++11)(C++11)(C++11)
computes the inverse hyperbolic sine (arsinh(x))
(function)
(C++11)(C++11)(C++11)
computes the inverse hyperbolic cosine (arcosh(x))
(function)
(C++11)(C++11)(C++11)
computes the inverse hyperbolic tangent (artanh(x))
(function)
Error and gamma functions
(C++11)(C++11)(C++11)
error function
(function)
(C++11)(C++11)(C++11)
complementary error function
(function)
(C++11)(C++11)(C++11)
gamma function
(function)
(C++11)(C++11)(C++11)
natural logarithm of the gamma function
(function)
Nearest integer floating point operations
(C++11)(C++11)
nearest integer not less than the given value
(function)
(C++11)(C++11)
nearest integer not greater than the given value
(function)
(C++11)(C++11)(C++11)
nearest integer not greater in magnitude than the given value
(function)
(C++11)(C++11)(C++11)(C++11)(C++11)(C++11)(C++11)(C++11)(C++11)
nearest integer, rounding away from zero in halfway cases
(function)
(C++11)(C++11)(C++11)
nearest integer using current rounding mode
(function)
(C++11)(C++11)(C++11)(C++11)(C++11)(C++11)(C++11)(C++11)(C++11)
nearest integer using current rounding mode with
exception if the result differs
(function)
Floating point manipulation functions
(C++11)(C++11)
decomposes a number into significand and a power of 2
(function)
(C++11)(C++11)
multiplies a number by 2 raised to a power
(function)
(C++11)(C++11)
decomposes a number into integer and fractional parts
(function)
(C++11)(C++11)(C++11)(C++11)(C++11)(C++11)
multiplies a number by FLT_RADIX raised to a power
(function)
(C++11)(C++11)(C++11)
extracts exponent of the number
(function)
(C++11)(C++11)(C++11)
extracts exponent of the number
(function)
(C++11)(C++11) (C++11)(C++11)(C++11)(C++11)
next representable floating point value towards the given value
(function)
(C++11)(C++11)(C++11)
copies the sign of a floating point value
(function)
Classification and comparison
categorizes the given floating-point value
(function)
(C++11)
checks if the given number has finite value
(function)
(C++11)
checks if the given number is infinite
(function)
(C++11)
checks if the given number is NaN
(function)
(C++11)
checks if the given number is normal
(function)
(C++11)
checks if the given number is negative
(function)
(C++11)
checks if the first floating-point argument is greater than the second
(function)
checks if the first floating-point argument is greater or equal than the second
(function)
(C++11)
checks if the first floating-point argument is less than the second
(function)
checks if the first floating-point argument is less or equal than the second
(function)
checks if the first floating-point argument is less or greater than the second
(function)
checks if two floating-point values are unordered
(function)

Types

Defined in header <cstdlib>
structure type, return of the std::div function
(typedef)
structure type, return of the std::ldiv function
(typedef)
(C++11)
structure type, return of the std::lldiv function
(typedef)
Defined in header <cinttypes>
(C++11)
structure type, return of the std::imaxdiv function
(typedef)
Defined in header <cmath>
float_t
(C++11)
most efficient floating-point type at least as wide as float
(typedef)
double_t
(C++11)
most efficient floating-point type at least as wide as double
(typedef)

Macro constants

Defined in header <cmath>
indicates the overflow value for float, double and long double respectively
(macro constant)
(C++11)
evaluates to positive infinity or the value guaranteed to overflow a float
(macro constant)
(C++11)
evaluates to a quiet NaN of type float
(macro constant)
defines the error handling mechanism used by the common mathematical functions
(macro constant)
Classification
(C++11)(C++11)(C++11)(C++11)(C++11)
indicates a floating-point category
(macro constant)

Notes

Feature-test macro: __cpp_lib_constexpr_cmath

See also

Mathematical special functions