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Computing › C ›

Math.h

Overview

Math.h library belongs to C standard library and defines common mathematical functions.

Section Pages

acos

acos, acosl, acosf, acos, cacos, cacosf, cacosl
arc cosine function

atan2

atan2, atan2l, atan2f
arc tangent function of two variables

atan

atan, atanl, atanf, atan, catan, catanf, catanl
arc tangent function of one variable

asin

asin, asinl, asinf, asin, casin, casinf, casinl
arc sine function

ceil

ceil, ceill, ceilf
round to smallest integral value not less than x

cosh

cosh, coshl, coshf
hyperbolic cosine function

cos

cos, cosl, cosf, ccos, ccosl, ccosf
cosine function

exp

exp, expl, expf, exp2, exp2l, exp2f, expm1, expm1l, expm1f
exponential functions

fabs

fabs, fabsl, fabsf
floating-point absolute value function

fmod

fmod, fmodl, fmodf
floating-point remainder function

floor

floor, floorl, floorf
round to largest integral value not greater than x

frexp

frexp, frexpl, frexpf
break floating-point number into normalized fraction and power of 2

ldexp

ldexp, ldexpl, ldexpf
multiply by integer power of 2

log

log, logl, logf, log2, log2l, log2f, log10, log10l, log10f, log1p, log1pl, log1pf
logarithm functions

modf

modf, modfl, modff
return integral and fractional parts

pow

pow, powl, powf, cpow, cpowf, cpowl
power function

sin

sin, sinl, sinf, sin, csin, csinf, csinl
sine function

sqrt

sqrt, sqrtl, sqrtf, sqrt, csqrt, csqrtf, csqrtl
square root function

sinh

sinh, sinhl, sinhf
hyperbolic sine function

tan

tan, tanl, tanf, tan, ctan, ctan, ctanl
tangent function

tanh

tanh, tanhl, tanhf
hyperbolic tangent function

round

round, roundl, roundf, lround, lroundl, lroundf, llround, llroundl, llroundf
round to integral value, regardless of rounding direction