Defined in header <stdlib.h> |
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(C99) | computes absolute value of an integral value (\(\small{|x|}\)|x|) (function) |
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(C99) | computes quotient and remainder of integer division (function) |
Defined in header <inttypes.h> |
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(C99) | computes absolute value of an integral value (\(\small{|x|}\)|x|) (function) |
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(C99) | computes quotient and remainder of integer division (function) |
Defined in header <math.h> |
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Basic operations |
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(C99)(C99) | computes absolute value of a floating-point value (\(\small{|x|}\)|x|) (function) |
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(C99)(C99) | computes remainder of the floating-point division operation (function) |
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(C99)(C99)(C99) | computes signed remainder of the floating-point division operation (function) |
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(C99)(C99)(C99) | computes signed remainder as well as the three last bits of the division operation (function) |
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(C99)(C99)(C99) | computes fused multiply-add operation (function) |
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(C99)(C99)(C99) | determines larger of two floating-point values (function) |
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(C99)(C99)(C99) | determines smaller of two floating-point values (function) |
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(C99)(C99)(C99) | determines positive difference of two floating-point values (\({\small\max{(0, x-y)} }\)max(0, x-y)) (function) |
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(C99)(C99)(C99) | returns a NaN (not-a-number) (function) |
Exponential functions |
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(C99)(C99) | computes e raised to the given power (\({\small e^x}\)ex) (function) |
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(C99)(C99)(C99) | computes 2 raised to the given power (\({\small 2^x}\)2x) (function) |
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(C99)(C99)(C99) | computes e raised to the given power, minus one (\({\small e^x-1}\)ex-1) (function) |
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(C99)(C99) | computes natural (base-e) logarithm (\({\small \ln{x} }\)ln(x)) (function) |
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(C99)(C99) | computes common (base-10) logarithm (\({\small \log_{10}{x} }\)log10(x)) (function) |
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(C99)(C99)(C99) | computes base-2 logarithm (\({\small \log_{2}{x} }\)log2(x)) (function) |
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(C99)(C99)(C99) | computes natural (base-e) logarithm of 1 plus the given number (\({\small \ln{(1+x)} }\)ln(1+x)) (function) |
Power functions |
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(C99)(C99) | computes a number raised to the given power (\(\small{x^y}\)xy) (function) |
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(C99)(C99) | computes square root (\(\small{\sqrt{x} }\)√x) (function) |
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(C99)(C99)(C99) | computes cubic root (\(\small{\sqrt[3]{x} }\)3√x) (function) |
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(C99)(C99)(C99) | computes square root of the sum of the squares of two given numbers (\(\scriptsize{\sqrt{x^2+y^2} }\)√x2 +y2 ) (function) |
Trigonometric functions |
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(C99)(C99) | computes sine (\({\small\sin{x} }\)sin(x)) (function) |
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(C99)(C99) | computes cosine (\({\small\cos{x} }\)cos(x)) (function) |
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(C99)(C99) | computes tangent (\({\small\tan{x} }\)tan(x)) (function) |
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(C99)(C99) | computes arc sine (\({\small\arcsin{x} }\)arcsin(x)) (function) |
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(C99)(C99) | computes arc cosine (\({\small\arccos{x} }\)arccos(x)) (function) |
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(C99)(C99) | computes arc tangent (\({\small\arctan{x} }\)arctan(x)) (function) |
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(C99)(C99) | computes arc tangent, using signs to determine quadrants (function) |
Hyperbolic functions |
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(C99)(C99) | computes hyperbolic sine (\({\small\sinh{x} }\)sinh(x)) (function) |
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(C99)(C99) | computes hyperbolic cosine (\({\small\cosh{x} }\)cosh(x)) (function) |
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(C99)(C99) | computes hyperbolic tangent (\({\small\tanh{x} }\)tanh(x)) (function) |
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(C99)(C99)(C99) | computes inverse hyperbolic sine (\({\small\operatorname{arsinh}{x} }\)arsinh(x)) (function) |
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(C99)(C99)(C99) | computes inverse hyperbolic cosine (\({\small\operatorname{arcosh}{x} }\)arcosh(x)) (function) |
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(C99)(C99)(C99) | computes inverse hyperbolic tangent (\({\small\operatorname{artanh}{x} }\)artanh(x)) (function) |
Error and gamma functions |
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(C99)(C99)(C99) | computes error function (function) |
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(C99)(C99)(C99) | computes complementary error function (function) |
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(C99)(C99)(C99) | computes gamma function (function) |
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(C99)(C99)(C99) | computes natural (base-e) logarithm of the gamma function (function) |
Nearest integer floating-point operations |
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(C99)(C99) | computes smallest integer not less than the given value (function) |
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(C99)(C99) | computes largest integer not greater than the given value (function) |
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(C99)(C99)(C99) | rounds to nearest integer not greater in magnitude than the given value (function) |
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(C99)(C99)(C99)(C99)(C99)(C99)(C99)(C99)(C99) | rounds to nearest integer, rounding away from zero in halfway cases (function) |
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(C99)(C99)(C99) | rounds to an integer using current rounding mode (function) |
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(C99)(C99)(C99)(C99)(C99)(C99)(C99)(C99)(C99) | rounds to an integer using current rounding mode with exception if the result differs (function) |
Floating-point manipulation functions |
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(C99)(C99) | breaks a number into significand and a power of 2 (function) |
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(C99)(C99) | multiplies a number by 2 raised to a power (function) |
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(C99)(C99) | breaks a number into integer and fractional parts (function) |
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(C99)(C99)(C99)(C99)(C99)(C99) | computes efficiently a number times FLT_RADIX raised to a power (function) |
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(C99)(C99)(C99) | extracts exponent of the given number (function) |
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(C99)(C99)(C99) | extracts exponent of the given number (function) |
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(C99)(C99)(C99)(C99)(C99)(C99) | determines next representable floating-point value towards the given value (function) |
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(C99)(C99)(C99) | produces a value with the magnitude of a given value and the sign of another given value (function) |
Classification and comparison |
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(C99) | classifies the given floating-point value (function macro) |
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(C99) | checks if the given number has finite value (function macro) |
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(C99) | checks if the given number is infinite (function macro) |
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(C99) | checks if the given number is NaN (function macro) |
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(C99) | checks if the given number is normal (function macro) |
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(C99) | checks if the given number is negative (function macro) |
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(C99) | checks if the first floating-point argument is greater than the second (function macro) |
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(C99) | checks if the first floating-point argument is greater or equal than the second (function macro) |
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(C99) | checks if the first floating-point argument is less than the second (function macro) |
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(C99) | checks if the first floating-point argument is less or equal than the second (function macro) |
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(C99) | checks if the first floating-point argument is less or greater than the second (function macro) |
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(C99) | checks if two floating-point values are unordered (function macro) |
Defined in header <stdlib.h> |
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structure type, return of the div function (typedef) |
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structure type, return of the ldiv function (typedef) |
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(C99) | structure type, return of the lldiv function (typedef) |
Defined in header <inttypes.h> |
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(C99) | structure type, return of the imaxdiv function (typedef) |
Defined in header <math.h> |
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(C99)(C99) | most efficient floating-point type at least as wide as float or double (typedef) |
Defined in header <math.h> |
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(C99)(C99) | indicates value too big to be representable (infinity) by float, double and long double respectively (macro constant) |
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(C99) | evaluates to positive infinity or the value guaranteed to overflow a float (macro constant) |
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(C99) | evaluates to a quiet NaN of type float (macro constant) |
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(C99)(C99)(C99) | indicates that the fma function generally executes about as fast as, or faster than, a multiply and an add of double operands (macro constant) |
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(C99)(C99) | evaluates to ilogb(x) if x is zero or NaN, respectively (macro constant) |
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(C99)(C99)(C99) | defines the error handling mechanism used by the common mathematical functions (macro constant) |
Classification |
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(C99)(C99)(C99)(C99)(C99) | indicates a floating-point category (macro constant) |
| C++ documentation for Common mathematical functions |
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