The behaviour of the interfaces in this library is specified by the following Standards.
| ISO/IEC 9899: 1999, Programming Languages --C |
| CAE Specification, January 1997, System Interfaces and Headers (XSH), Issue 5 (ISBN: 1-85912-181-0, C606) |
Table A-4. libm Function Interfaces
| acos(GLIBC_2.0)[2] | csinhf(GLIBC_2.0)[1] | llroundf(GLIBC_2.0)[1] |
| acosf(GLIBC_2.0)[1] | csinhl(GLIBC_2.0)[1] | llroundl(GLIBC_2.0)[1] |
| acosh(GLIBC_2.0)[2] | csinl(GLIBC_2.0)[1] | log(GLIBC_2.0)[2] |
| acoshf(GLIBC_2.0)[1] | csqrt(GLIBC_2.0)[1] | log10(GLIBC_2.0)[2] |
| acoshl(GLIBC_2.0)[1] | csqrtf(GLIBC_2.0)[1] | log1p(GLIBC_2.0)[2] |
| acosl(GLIBC_2.0)[1] | csqrtl(GLIBC_2.0)[1] | logb(GLIBC_2.0)[2] |
| asin(GLIBC_2.0)[2] | ctan(GLIBC_2.0)[1] | lrint(GLIBC_2.0)[1] |
| asinf(GLIBC_2.0)[1] | ctanf(GLIBC_2.0)[1] | lrintf(GLIBC_2.0)[1] |
| asinh(GLIBC_2.0)[2] | ctanh(GLIBC_2.0)[1] | lrintl(GLIBC_2.0)[1] |
| asinhf(GLIBC_2.0)[1] | ctanhf(GLIBC_2.0)[1] | lround(GLIBC_2.0)[1] |
| asinhl(GLIBC_2.0)[1] | ctanhl(GLIBC_2.0)[1] | lroundf(GLIBC_2.0)[1] |
| asinl(GLIBC_2.0)[1] | ctanl(GLIBC_2.0)[1] | lroundl(GLIBC_2.0)[1] |
| atan(GLIBC_2.0)[2] | dremf(GLIBC_2.0)[1] | matherr(GLIBC_2.0)[1] |
| atan2(GLIBC_2.0)[2] | dreml(GLIBC_2.0)[1] | modf(GLIBC_2.0)[2] |
| atan2f(GLIBC_2.0)[1] | erf(GLIBC_2.0)[2] | modff(GLIBC_2.0)[1] |
| atan2l(GLIBC_2.0)[1] | erfc(GLIBC_2.0)[2] | modfl(GLIBC_2.0)[1] |
| atanf(GLIBC_2.0)[1] | erfcf(GLIBC_2.0)[1] | nan(GLIBC_2.0)[1] |
| atanh(GLIBC_2.0)[2] | erfcl(GLIBC_2.0)[1] | nanf(GLIBC_2.0)[1] |
| atanhf(GLIBC_2.0)[1] | erff(GLIBC_2.0)[1] | nanl(GLIBC_2.0)[1] |
| atanhl(GLIBC_2.0)[1] | erfl(GLIBC_2.0)[1] | nearbyint(GLIBC_2.0)[1] |
| atanl(GLIBC_2.0)[1] | exp(GLIBC_2.0)[2] | nearbyintf(GLIBC_2.0)[1] |
| cabs(GLIBC_2.1)[2] | expm1(GLIBC_2.1)[2] | nearbyintl(GLIBC_2.1)[1] |
| cabsf(GLIBC_2.1)[1] | fabs(GLIBC_2.1)[2] | nextafter(GLIBC_2.1)[2] |
| cabsl(GLIBC_2.1)[1] | fabsf(GLIBC_2.1)[1] | nextafterf(GLIBC_2.1)[1] |
| cacos(GLIBC_2.1)[1] | fabsl(GLIBC_2.1)[1] | nextafterl(GLIBC_2.1)[1] |
| cacosf(GLIBC_2.1)[1] | fdim(GLIBC_2.1)[1] | nexttoward(GLIBC_2.1)[1] |
| cacosh(GLIBC_2.1)[1] | fdimf(GLIBC_2.1)[1] | nexttowardf(GLIBC_2.1)[1] |
| cacoshf(GLIBC_2.1)[1] | fdiml(GLIBC_2.1)[1] | nexttowardl(GLIBC_2.1)[1] |
| cacoshl(GLIBC_2.1)[1] | feclearexcept(GLIBC_2.1)[1] | pow(GLIBC_2.1)[2] |
| cacosl(GLIBC_2.1)[1] | fegetenv(GLIBC_2.1)[1] | pow10(GLIBC_2.1)[1] |
| carg(GLIBC_2.1)[1] | fegetexceptflag(GLIBC_2.1)[1] | pow10f(GLIBC_2.1)[1] |
| cargf(GLIBC_2.1)[1] | fegetround(GLIBC_2.1)[1] | pow10l(GLIBC_2.1)[1] |
| cargl(GLIBC_2.1)[1] | feholdexcept(GLIBC_2.1)[1] | powf(GLIBC_2.1)[1] |
| casin(GLIBC_2.1)[1] | feraiseexcept(GLIBC_2.1)[1] | powl(GLIBC_2.1)[1] |
| casinf(GLIBC_2.1)[1] | fesetenv(GLIBC_2.1)[1] | remainder(GLIBC_2.1)[2] |
| casinh(GLIBC_2.1)[1] | fesetexceptflag(GLIBC_2.1)[1] | remainderf(GLIBC_2.1)[1] |
| casinhf(GLIBC_2.1)[1] | fesetround(GLIBC_2.1)[1] | remainderl(GLIBC_2.1)[1] |
| casinhl(GLIBC_2.1)[1] | fetestexcept(GLIBC_2.1)[1] | remquo(GLIBC_2.1)[1] |
| casinl(GLIBC_2.1)[1] | feupdateenv(GLIBC_2.1)[1] | remquof(GLIBC_2.1)[1] |
| catan(GLIBC_2.1)[1] | finite(GLIBC_2.1)[2] | remquol(GLIBC_2.1)[1] |
| catanf(GLIBC_2.1)[1] | finitef(GLIBC_2.1)[1] | rint(GLIBC_2.1)[2] |
| catanh(GLIBC_2.1)[1] | finitel(GLIBC_2.1)[1] | rintf(GLIBC_2.1)[1] |
| catanhf(GLIBC_2.1)[1] | floor(GLIBC_2.1)[2] | rintl(GLIBC_2.1)[1] |
| catanhl(GLIBC_2.1)[1] | floorf(GLIBC_2.1)[1] | round(GLIBC_2.1)[1] |
| catanl(GLIBC_2.1)[1] | floorl(GLIBC_2.1)[1] | roundf(GLIBC_2.1)[1] |
| cbrt(GLIBC_2.0)[2] | fma(GLIBC_2.0)[1] | roundl(GLIBC_2.0)[1] |
| cbrtf(GLIBC_2.0)[1] | fmaf(GLIBC_2.0)[1] | scalb(GLIBC_2.0)[2] |
| cbrtl(GLIBC_2.0)[1] | fmal(GLIBC_2.0)[1] | scalbf(GLIBC_2.0)[1] |
| ccos(GLIBC_2.1)[1] | fmax(GLIBC_2.1)[1] | scalbl(GLIBC_2.1)[1] |
| ccosf(GLIBC_2.1)[1] | fmaxf(GLIBC_2.1)[1] | scalbln(GLIBC_2.1)[1] |
| ccosh(GLIBC_2.1)[1] | fmaxl(GLIBC_2.1)[1] | scalblnf(GLIBC_2.1)[1] |
| ccoshf(GLIBC_2.1)[1] | fmin(GLIBC_2.1)[1] | scalblnl(GLIBC_2.1)[1] |
| ccoshl(GLIBC_2.1)[1] | fminf(GLIBC_2.1)[1] | scalbn(GLIBC_2.1)[1] |
| ccosl(GLIBC_2.1)[1] | fminl(GLIBC_2.1)[1] | scalbnf(GLIBC_2.1)[1] |
| ceil(GLIBC_2.0)[2] | fmod(GLIBC_2.0)[2] | scalbnl(GLIBC_2.0)[1] |
| ceilf(GLIBC_2.0)[1] | fmodf(GLIBC_2.0)[1] | significand(GLIBC_2.0)[1] |
| ceill(GLIBC_2.0)[1] | fmodl(GLIBC_2.0)[1] | significandf(GLIBC_2.0)[1] |
| cexp(GLIBC_2.1)[1] | frexp(GLIBC_2.1)[2] | significandl(GLIBC_2.1)[1] |
| cexpf(GLIBC_2.1)[1] | frexpf(GLIBC_2.1)[1] | sin(GLIBC_2.1)[2] |
| cexpl(GLIBC_2.1)[1] | frexpl(GLIBC_2.1)[1] | sincos(GLIBC_2.1)[1] |
| cimag(GLIBC_2.1)[1] | gamma(GLIBC_2.1)[2] | sincosf(GLIBC_2.1)[1] |
| cimagf(GLIBC_2.1)[1] | gammaf(GLIBC_2.1)[1] | sincosl(GLIBC_2.1)[1] |
| cimagl(GLIBC_2.1)[1] | gammal(GLIBC_2.1)[1] | sinf(GLIBC_2.1)[1] |
| clog10(GLIBC_2.1)[1] | hypot(GLIBC_2.1)[2] | sinh(GLIBC_2.1)[2] |
| clog10f(GLIBC_2.1)[1] | hypotf(GLIBC_2.1)[1] | sinhf(GLIBC_2.1)[1] |
| clog10l(GLIBC_2.1)[1] | hypotl(GLIBC_2.1)[1] | sinhl(GLIBC_2.1)[1] |
| clogf(GLIBC_2.1)[1] | ilogb(GLIBC_2.1)[2] | sinl(GLIBC_2.1)[1] |
| clogl(GLIBC_2.1)[1] | ilogbf(GLIBC_2.1)[1] | sqrt(GLIBC_2.1)[2] |
| conj(GLIBC_2.1)[1] | ilogbl(GLIBC_2.1)[1] | sqrtf(GLIBC_2.1)[1] |
| conjf(GLIBC_2.1)[1] | j0(GLIBC_2.1)[2] | sqrtl(GLIBC_2.1)[1] |
| conjl(GLIBC_2.1)[1] | j0f(GLIBC_2.1)[1] | tan(GLIBC_2.1)[2] |
| copysign(GLIBC_2.0)[1] | j0l(GLIBC_2.0)[1] | tanf(GLIBC_2.0)[1] |
| copysignf(GLIBC_2.0)[1] | j1(GLIBC_2.0)[2] | tanh(GLIBC_2.0)[2] |
| copysignl(GLIBC_2.0)[1] | j1f(GLIBC_2.0)[1] | tanhf(GLIBC_2.0)[1] |
| cos(GLIBC_2.0)[2] | j1l(GLIBC_2.0)[1] | tanhl(GLIBC_2.0)[1] |
| cosf(GLIBC_2.0)[1] | jn(GLIBC_2.0)[2] | tanl(GLIBC_2.0)[1] |
| cosh(GLIBC_2.0)[2] | jnf(GLIBC_2.0)[1] | tgamma(GLIBC_2.0)[1] |
| coshf(GLIBC_2.0)[1] | jnl(GLIBC_2.0)[1] | tgammaf(GLIBC_2.0)[1] |
| coshl(GLIBC_2.0)[1] | ldexp(GLIBC_2.0)[2] | tgammal(GLIBC_2.0)[1] |
| cosl(GLIBC_2.0)[1] | ldexpf(GLIBC_2.0)[1] | trunc(GLIBC_2.0)[1] |
| cpow(GLIBC_2.1)[1] | ldexpl(GLIBC_2.1)[1] | truncf(GLIBC_2.1)[1] |
| cpowf(GLIBC_2.1)[1] | lgamma(GLIBC_2.1)[2] | truncl(GLIBC_2.1)[1] |
| cpowl(GLIBC_2.1)[1] | lgamma_r(GLIBC_2.1)[1] | y0(GLIBC_2.1)[2] |
| cproj(GLIBC_2.1)[1] | lgammaf(GLIBC_2.1)[1] | y0f(GLIBC_2.1)[1] |
| cprojf(GLIBC_2.1)[1] | lgammaf_r(GLIBC_2.1)[1] | y0l(GLIBC_2.1)[1] |
| cprojl(GLIBC_2.1)[1] | lgammal(GLIBC_2.1)[1] | y1(GLIBC_2.1)[2] |
| creal(GLIBC_2.1)[1] | lgammal_r(GLIBC_2.1)[1] | y1f(GLIBC_2.1)[1] |
| creall(GLIBC_2.1)[1] | llrint(GLIBC_2.1)[1] | y1l(GLIBC_2.1)[1] |
| csin(GLIBC_2.1)[1] | llrintf(GLIBC_2.1)[1] | yn(GLIBC_2.1)[2] |
| csinf(GLIBC_2.1)[1] | llrintl(GLIBC_2.1)[1] | ynf(GLIBC_2.1)[1] |
| csinh(GLIBC_2.1)[1] | llround(GLIBC_2.1)[1] | ynl(GLIBC_2.1)[1] |