cmath (math.h)

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cmath (math.h)

C numerics library

cmath declares a set of functions to compute common mathematical operations and transformations:

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)

Exponential and logarithmic functions:

exp

Compute exponential function (function)

frexp

Get significand and exponent (function)

ldexp

Generate number from significand and exponent (function)

log

Compute natural logarithm (function)

log10

Compute common logarithm (function)

modf

Break into fractional and integral parts (function)

Power functions

pow

Raise to power (function)

sqrt

Compute square root (function)

Rounding, absolute value and remainder functions:

ceil

Round up value (function)

fabs

Compute absolute value (function)

floor

Round down value (function)

fmod

Compute remainder of division (function)