Defined in header <cstdlib> |
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(C++11) | computes absolute value of an integral value (\(\small{|x|}\)|x|) (function) |
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(C++11) | computes quotient and remainder of integer division (function) |
Defined in header <cinttypes> |
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(C++11)(C++11) | computes absolute value of an integral value (\(\small{|x|}\)|x|) (function) |
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(C++11)(C++11) | computes quotient and remainder of integer division (function) |
Defined in header <cmath> |
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Basic operations |
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(C++11)(C++11) | absolute value of a floating point value (\(\small{|x|}\)|x|) (function) |
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(C++11)(C++11) | remainder of the floating point division operation (function) |
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(C++11)(C++11)(C++11) | signed remainder of the division operation (function) |
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(C++11)(C++11)(C++11) | signed remainder as well as the three last bits of the division operation (function) |
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(C++11)(C++11)(C++11) | fused multiply-add operation (function) |
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(C++11)(C++11)(C++11) | larger of two floating-point values (function) |
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(C++11)(C++11)(C++11) | smaller of two floating point values (function) |
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(C++11)(C++11)(C++11) | positive difference of two floating point values (\({\small\max{(0, x-y)} }\)max(0, x-y)) (function) |
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(C++11)(C++11)(C++11) | not-a-number (NaN) (function) |
Exponential functions |
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(C++11)(C++11) | returns e raised to the given power (\({\small e^x}\)ex) (function) |
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(C++11)(C++11)(C++11) | returns 2 raised to the given power (\({\small 2^x}\)2x) (function) |
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(C++11)(C++11)(C++11) | returns e raised to the given power, minus one (\({\small e^x-1}\)ex-1) (function) |
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(C++11)(C++11) | computes natural (base e) logarithm (\({\small \ln{x} }\)ln(x)) (function) |
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(C++11)(C++11) | computes common (base 10) logarithm (\({\small \log_{10}{x} }\)log10(x)) (function) |
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(C++11)(C++11)(C++11) | base 2 logarithm of the given number (\({\small \log_{2}{x} }\)log2(x)) (function) |
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(C++11)(C++11)(C++11) | natural logarithm (to base e) of 1 plus the given number (\({\small \ln{(1+x)} }\)ln(1+x)) (function) |
Power functions |
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(C++11)(C++11) | raises a number to the given power (\(\small{x^y}\)xy) (function) |
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(C++11)(C++11) | computes square root (\(\small{\sqrt{x} }\)√x) (function) |
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(C++11)(C++11)(C++11) | computes cube root (\(\small{\sqrt[3]{x} }\)3√x) (function) |
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(C++11)(C++11)(C++11) | computes square root of the sum of the squares of two or three (since C++17) given numbers (\(\scriptsize{\sqrt{x^2+y^2} }\)√x2 +y2 ), (\(\scriptsize{\sqrt{x^2+y^2+z^2} }\)√x2 +y2 +z2 ) (since C++17) (function) |
Trigonometric functions |
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(C++11)(C++11) | computes sine (\({\small\sin{x} }\)sin(x)) (function) |
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(C++11)(C++11) | computes cosine (\({\small\cos{x} }\)cos(x)) (function) |
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(C++11)(C++11) | computes tangent (\({\small\tan{x} }\)tan(x)) (function) |
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(C++11)(C++11) | computes arc sine (\({\small\arcsin{x} }\)arcsin(x)) (function) |
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(C++11)(C++11) | computes arc cosine (\({\small\arccos{x} }\)arccos(x)) (function) |
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(C++11)(C++11) | computes arc tangent (\({\small\arctan{x} }\)arctan(x)) (function) |
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(C++11)(C++11) | arc tangent, using signs to determine quadrants (function) |
Hyperbolic functions |
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(C++11)(C++11) | computes hyperbolic sine (\({\small\sinh{x} }\)sinh(x)) (function) |
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(C++11)(C++11) | computes hyperbolic cosine (\({\small\cosh{x} }\)cosh(x)) (function) |
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(C++11)(C++11) | computes hyperbolic tangent (\({\small\tanh{x} }\)tanh(x)) (function) |
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(C++11)(C++11)(C++11) | computes the inverse hyperbolic sine (\({\small\operatorname{arsinh}{x} }\)arsinh(x)) (function) |
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(C++11)(C++11)(C++11) | computes the inverse hyperbolic cosine (\({\small\operatorname{arcosh}{x} }\)arcosh(x)) (function) |
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(C++11)(C++11)(C++11) | computes the inverse hyperbolic tangent (\({\small\operatorname{artanh}{x} }\)artanh(x)) (function) |
Error and gamma functions |
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(C++11)(C++11)(C++11) | error function (function) |
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(C++11)(C++11)(C++11) | complementary error function (function) |
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(C++11)(C++11)(C++11) | gamma function (function) |
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(C++11)(C++11)(C++11) | natural logarithm of the gamma function (function) |
Nearest integer floating point operations |
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(C++11)(C++11) | nearest integer not less than the given value (function) |
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(C++11)(C++11) | nearest integer not greater than the given value (function) |
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(C++11)(C++11)(C++11) | nearest integer not greater in magnitude than the given value (function) |
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(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) |
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(C++11)(C++11)(C++11) | nearest integer using current rounding mode (function) |
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(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 |
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(C++11)(C++11) | decomposes a number into significand and a power of 2 (function) |
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(C++11)(C++11) | multiplies a number by 2 raised to a power (function) |
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(C++11)(C++11) | decomposes a number into integer and fractional parts (function) |
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(C++11)(C++11)(C++11)(C++11)(C++11)(C++11) | multiplies a number by FLT_RADIX raised to a power (function) |
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(C++11)(C++11)(C++11) | extracts exponent of the number (function) |
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(C++11)(C++11)(C++11) | extracts exponent of the number (function) |
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(C++11)(C++11) (C++11)(C++11)(C++11)(C++11) | next representable floating point value towards the given value (function) |
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(C++11)(C++11)(C++11) | copies the sign of a floating point value (function) |
Classification and comparison |
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(C++11) | categorizes the given floating-point value (function) |
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(C++11) | checks if the given number has finite value (function) |
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(C++11) | checks if the given number is infinite (function) |
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(C++11) | checks if the given number is NaN (function) |
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(C++11) | checks if the given number is normal (function) |
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(C++11) | checks if the given number is negative (function) |
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(C++11) | checks if the first floating-point argument is greater than the second (function) |
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(C++11) | checks if the first floating-point argument is greater or equal than the second (function) |
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(C++11) | checks if the first floating-point argument is less than the second (function) |
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(C++11) | checks if the first floating-point argument is less or equal than the second (function) |
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(C++11) | checks if the first floating-point argument is less or greater than the second (function) |
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(C++11) | checks if two floating-point values are unordered (function) |
Defined in header <cstdlib> |
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structure type, returned by std::div (typedef) |
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structure type, returned by std::ldiv (typedef) |
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(C++11) | structure type, returned by std::lldiv (typedef) |
Defined in header <cinttypes> |
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(C++11) | structure type, returned by std::imaxdiv (typedef) |
Defined in header <cmath> |
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| 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) |
Defined in header <cmath> |
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(C++11)(C++11) | indicates the overflow value for float, double and long double respectively (macro constant) |
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(C++11) | evaluates to positive infinity or the value guaranteed to overflow a float (macro constant) |
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(C++11) | evaluates to a quiet NaN of type float (macro constant) |
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(C++11)(C++11)(C++11) | defines the error handling mechanism used by the common mathematical functions (macro constant) |
Classification |
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(C++11)(C++11)(C++11)(C++11)(C++11) | indicates a floating-point category (macro constant) |
| Feature-test macro | Value | Std | Comment |
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__cpp_lib_constexpr_cmath | 202202L | (C++23) | Constexpr for FP environment agnostic mathematical functions in <cmath> and <cstdlib> |
| Mathematical special functions | |
| C documentation for Common mathematical functions |
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