The Cygnus C Math Library

libm 1.4

December 1995

• Mathematical Functions (`math.h')
  • Version of library
  • acos, acosf---arc cosine
  • acosh, acoshf---inverse hyperbolic cosine
  • asin, asinf---arc sine
  • asinh, asinhf---inverse hyperbolic sine
  • atan, atanf---arc tangent
  • atan2, atan2f---arc tangent of y/x
  • atanh, atanhf---inverse hyperbolic tangent
  • jN,jNf,yN,yNf---Bessel functions
  • cbrt, cbrtf---cube root
  • copysign, copysignf---sign of y, magnitude of x
  • cosh, coshf---hyperbolic cosine
  • erf, erff, erfc, erfcf---error function
  • exp, expf---exponential
  • expm1, expm1f---exponential minus 1
  • fabs, fabsf---absolute value (magnitude)
  • floor, floorf, ceil, ceilf---floor and ceiling
  • fmod, fmodf---floating-point remainder (modulo)
  • frexp, frexpf---split floating-point number
  • gamma, gammaf, lgamma, lgammaf, gamma_r,
  • hypot, hypotf---distance from origin
  • ilogb, ilogbf---get exponent of floating point number
  • infinity, infinityf---representation of infinity
  • isnan,isnanf,isinf,isinff,finite,finitef---test for exceptional numbers
  • ldexp, ldexpf---load exponent
  • log, logf---natural logarithms
  • log10, log10f---base 10 logarithms
  • log1p, log1pf---log of 1 + x
  • matherr---modifiable math error handler
  • modf, modff---split fractional and integer parts
  • nan, nanf---representation of infinity
  • nextafter, nextafterf---get next number
  • pow, powf---x to the power y
  • rint, rintf, remainder, remainderf---round and remainder
  • scalbn, scalbnf---scale by integer
  • sqrt, sqrtf---positive square root
  • sin, sinf, cos, cosf---sine or cosine
  • sinh, sinhf---hyperbolic sine
  • tan, tanf---tangent
  • tanh, tanhf---hyperbolic tangent
• Reentrancy Properties of libm
• Index

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