These functions perform numerical manipulation:
| a64l, l64a | Convert between long integers and base-64 ASCII strings |
| abs, div, labs, ldiv, imul_dbl, umul_dbl, llabs, lldiv | Compute absolute value, division, and multiplication of integers |
| asin, asinl, acos, acosl, atan, atanl, atan2, atan2l | Compute inverse trigonometric functions |
| asinh, acosh, atanh | Compute inverse hyperbolic functions |
| atof, atoff, strtod, strtold, strtof | Convert an ASCII string to a floating point number |
| bessell: j0, j1, jn, y0, y1, yn | Compute bessel functions |
| class, finite, isnan, unordered | Determine types of floating point functions |
| copysign, nextafter, scalb, logb, ilogb | Compute certain binary floating-point functions |
| nrand48, mrand48, jrand48, srand48, seed48, lcong48 | Generate pseudo-random sequences |
| lrand48_r, mrand48_r, nrand48_r, seed48_r, or srand48_r | Generate pseudo-random sequences |
| drem or remainder | Compute an IEEE remainder |
| ecvt, fcvt, gcvt | Convert a floating-point number to a string |
| erf, erfl, erfc, erfcl | Compute error and complementary error functions |
| exp, expl, expm1, log, logl, log10, log10l, log1p, pow, powl | Compute exponential, log, and power functions |
| floor, floorl, ceil, ceill, nearest, | |
| trunc, rint, itrunc, uitrunc, fmod, fmodl, fabs, fabsl | Round floating-point numbers |
| fp_any_enable, fp_is_enabled, fp_enable_all, | |
| fp_enable, fp_disable_all, fp_disable | Allow operations on the floating-point exception status |
| fp_clr_flag, fp_set_flag, fp_read_flag, or fp_swap_flag | Allow operations on the floating-point exception status |
| fp_invalid_op, fp_divbyzero, fp_overflow, | |
| fp_underflow, fp_inexact, fp_any_xcp | Test to see if a floating-point exception has occurred |
| fp_iop_snan, fp_iop_infsinf, fp_iop_infdinf, | |
| fp_iop_zrdzr, fp_iop_infmzr, fp_iop_invcmp | Test to see if a floating-point exception has occurred |
| fp_read_rnd,fp_swap_rnd | Read and set the IEEE rounding mode |
| frexp, frexpl, ldexp, ldexpl, modf, modfl | Manipulate floating point numbers |
| l64a_r | Converts base-64 long integers to strings |
| lgamma, lgammal, gamma | Compute the logarithm of the gamma function |
| hypot, cabs | Compute Euclidean distance functions and absolute values |
| 13tol, ltol3 | Convert between 3-byte integers and long integers |
| madd, msub, mult, mdiv, pow, gcd, invert, | |
| rpow, msqrt, mcmp, move, min, omin, | |
| fmin, m_in, mout, omout, fmout, m_out, sdiv, itom | Provide multiple precision integer arithmetic |
| rand, srand | Generate random numbers |
| rand_r | Generates random numbers |
| random, srandom, initstate, setstate | Generate better random numbers |
| rsqrt | Computes the reciprocal of the square root of a number |
| sin, cos, tan | Compute trigonometric and inverse trigonometric functions |
| sinh, sinhl, cosh, coshl, tanh, tanhl | Computes hyperbolic functions |
| sqrt, sqrtl, cbrt | Compute square root and cube root functions |
| strtol, strtoll, strtoul, strtoull, atol, atoi | Convert a string to an integer |