Document Index
Table of Contents
- 1 Mathematical Functions (math.h)
- 1.1 Error Handling
- 1.2 Standards Compliance And Portability
- 1.3
acos, acosf—arc cosine
- 1.4
acosh, acoshf—inverse hyperbolic cosine
- 1.5
asin, asinf—arc sine
- 1.6
asinh, asinhf—inverse hyperbolic sine
- 1.7
atan, atanf—arc tangent
- 1.8
atan2, atan2f—arc tangent of y/x
- 1.9
atanh, atanhf—inverse hyperbolic tangent
- 1.10
jN, jNf, yN, yNf—Bessel functions
- 1.11
cbrt, cbrtf—cube root
- 1.12
copysign, copysignf—sign of y, magnitude of x
- 1.13
cosh, coshf—hyperbolic cosine
- 1.14
erf, erff, erfc, erfcf—error function
- 1.15
exp, expf—exponential
- 1.16
exp10, exp10f—exponential, base 10
- 1.17
exp2, exp2f—exponential, base 2
- 1.18
expm1, expm1f—exponential minus 1
- 1.19
fabs, fabsf—absolute value (magnitude)
- 1.20
fdim, fdimf—positive difference
- 1.21
floor, floorf, ceil, ceilf—floor and ceiling
- 1.22
fma, fmaf—floating multiply add
- 1.23
fmax, fmaxf—maximum
- 1.24
fmin, fminf—minimum
- 1.25
fmod, fmodf—floating-point remainder (modulo)
- 1.26
frexp, frexpf—split floating-point number
- 1.27
gamma, gammaf, lgamma, lgammaf, gamma_r, gammaf_r, lgamma_r, lgammaf_r, tgamma, and tgammaf—logarithmic and plain gamma functions
- 1.28
hypot, hypotf—distance from origin
- 1.29
ilogb, ilogbf—get exponent of floating-point number
- 1.30
infinity, infinityf—representation of infinity
- 1.31
isgreater, isgreaterequal, isless, islessequal, islessgreater, and isunordered—comparison macros
- 1.32
fpclassify, isfinite, isinf, isnan, and isnormal—floating-point classification macros; finite, finitef, isinf, isinff, isnan, isnanf—test for exceptional numbers
- 1.33
ldexp, ldexpf—load exponent
- 1.34
log, logf—natural logarithms
- 1.35
log10, log10f—base 10 logarithms
- 1.36
log1p, log1pf—log of 1 + x
- 1.37
log2, log2f—base 2 logarithm
- 1.38
logb, logbf—get exponent of floating-point number
- 1.39
lrint, lrintf, llrint, llrintf—round to integer
- 1.40
lround, lroundf, llround, llroundf—round to integer, to nearest
- 1.41
modf, modff—split fractional and integer parts
- 1.42
nan, nanf—representation of “Not a Number”
- 1.43
nearbyint, nearbyintf—round to integer
- 1.44
nextafter, nextafterf—get next number
- 1.45
pow, powf—x to the power y
- 1.46
pow10, pow10f—base 10 power functions
- 1.47
remainder, remainderf—round and remainder
- 1.48
remquo, remquof—remainder and part of quotient
- 1.49
rint, rintf—round to integer
- 1.50
round, roundf—round to integer, to nearest
- 1.51
scalbn, scalbnf, scalbln, scalblnf—scale by power of FLT_RADIX (=2)
- 1.52
signbit—Does floating-point number have negative sign?
- 1.53
sin, sinf, cos, cosf—sine or cosine
- 1.54
sinh, sinhf—hyperbolic sine
- 1.55
sqrt, sqrtf—positive square root
- 1.56
tan, tanf—tangent
- 1.57
tanh, tanhf—hyperbolic tangent
- 1.58
trunc, truncf—round to integer, towards zero
- 2 Mathematical Complex Functions (complex.h)
- 2.1
cabs, cabsf, cabsl—complex absolute-value
- 2.2
cacos, cacosf—complex arc cosine
- 2.3
cacosh, cacoshf—complex arc hyperbolic cosine
- 2.4
carg, cargf—argument (phase angle)
- 2.5
casin, casinf—complex arc sine
- 2.6
casinh, casinhf—complex arc hyperbolic sine
- 2.7
catan, catanf—complex arc tangent
- 2.8
catanh, catanhf—complex arc hyperbolic tangent
- 2.9
ccos, ccosf—complex cosine
- 2.10
ccosh, ccoshf—complex hyperbolic cosine
- 2.11
cexp, cexpf—complex base-e exponential
- 2.12
cimag, cimagf, cimagl—imaginary part
- 2.13
clog, clogf—complex base-e logarithm
- 2.14
clog10, clog10f—complex base-10 logarithm
- 2.15
conj, conjf—complex conjugate
- 2.16
cpow, cpowf—complex power
- 2.17
cproj, cprojf— Riemann sphere projection
- 2.18
creal, crealf, creall—real part
- 2.19
csin, csinf—complex sine
- 2.20
csinh, csinhf—complex hyperbolic sine
- 2.21
csqrt, csqrtf—complex square root
- 2.22
ctan, ctanf—complex tangent
- 2.23
ctanh, ctanf—complex hyperbolic tangent
- 3 Reentrancy Properties of
libm
- 4 The long double function support of
libm
- Document Index