<cmath> (math.h)

Functions

Trigonometric functions

cos

Compute cosine (function)

sin

Compute sine (function)

tan

Compute tangent (function)

acos

Compute arc cosine (function)

asin

Compute arc sine (function)

atan

Compute arc tangent (function)

atan2

Compute arc tangent with two parameters (function)

Hyperbolic functions

cosh

Compute hyperbolic cosine (function)

sinh

Compute hyperbolic sine (function)

tanh

Compute hyperbolic tangent (function)

acosh

Compute area hyperbolic cosine (function)

asinh

Compute area hyperbolic sine (function)

atanh

Compute area hyperbolic tangent (function)

Exponential and logarithmic functions

exp

Compute exponential function (function)

frexp

Get significand and exponent (function)

ldexp

Generate value from significand and exponent (function)

log

Compute natural logarithm (function)

log10

Compute common logarithm (function)

modf

Break into fractional and integral parts (function)

exp2

Compute binary exponential function (function)

expm1

Compute exponential minus one (function)

ilogb

Integer binary logarithm (function)

log1p

Compute logarithm plus one (function)

log2

Compute binary logarithm (function)

logb

Compute floating-point base logarithm (function)

scalbn

Scale significand using floating-point base exponent (function)

scalbln

Scale significand using floating-point base exponent (long) (function)

Power functions

pow

Raise to power (function)

sqrt

Compute square root (function)

cbrt

Compute cubic root (function)

hypot

Compute hypotenuse (function)

Error and gamma functions

erf

Compute error function (function)

erfc

Compute complementary error function (function)

tgamma

Compute gamma function (function)

lgamma

Compute log-gamma function (function)

Rounding and remainder functions

ceil

Round up value (function)

floor

Round down value (function)

fmod

Compute remainder of division (function)

trunc

Truncate value (function)

round

Round to nearest (function)

lround

Round to nearest and cast to long integer (function)

llround

Round to nearest and cast to long long integer (function)

rint

Round to integral value (function)

lrint

Round and cast to long integer (function)

llrint

Round and cast to long long integer (function)

nearbyint

Round to nearby integral value (function)

remainder

Compute remainder (IEC 60559) (function)

remquo

Compute remainder and quotient (function)

Floating-point manipulation functions

copysign

Copy sign (function)

nan

Generate quiet NaN (function)

nextafter

Next representable value (function)

nexttoward

Next representable value toward precise value (function)

Minimum, maximum, difference functions

fdim

Positive difference (function)

fmax

Maximum value (function)

fmin

Minimum value (function)

Other functions

fabs

Compute absolute value (function)

abs

Compute absolute value (function)

fma

Multiply-add (function)

Macros / Functions

Classification macro / functions

fpclassify

Classify floating-point value (macro/function)

isfinite

Is finite value (macro)

isinf

Is infinity (macro/function)

isnan

Is Not-A-Number (macro/function)

isnormal

Is normal (macro/function)

signbit

Sign bit (macro/function)

Comparison macro / functions

isgreater

Is greater (macro)

isgreaterequal

Is greater or equal (macro)

isless

Is less (macro)

islessequal

Is less or equal (macro)

islessgreater

Is less or greater (macro)

isunordered

Is unordered (macro)

Macro constants

math_errhandling

Error handling (macro)

INFINITY

Infinity (constant)

NAN

Not-A-Number (constant)

HUGE_VAL

Huge value (constant)

HUGE_VALF

Huge float value

HUGE_VALL

Huge long double value (constant)

Types

double_t

Floating-point type (type)

float_t

Floating-point type (type)