<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 arc hyperbolic cosine (function )

asinh

Compute arc hyperbolic sine (function )

atanh

Compute arc 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

Not-A-Number (constant )

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 )