14.2 Functions

Following is a list of the functions supported by the library. Since these functions and their implementations are fully standard, they are not described in detail here; refer to the ISO C and Unix standards for more information.

acos,asin,atan,atan2

        arc cosine, sine, tangent function

acosh,asinh,atanh

      inverse hyperbolic cosine, sine, tangent functions

cbrt

  cube root function

ceil

  ceiling value function

cos,sin,tan

      cosine, sine, tangent functions

cosh,sinh,tanh

      hyperbolic cosine, sine, tangent functions

erf,erfc

    error and complementary error functions

exp,expm1

    exponential function

fabs

  absolute value function

floor

  floor value function

fmod

  floating point remainder function

frexp

  extract mantissa and exponent from double precision number

gamma,lgamma

    log gamma functions

hypot

  Euclidean distance function

ilogb

  returns exponent part of a floating point number

isnan

  test for NaN

j0,j1,jn

      Bessel functions of the first kind

ldexp

  load exponent of a floating point number

log,log1p

    natural logarithm functions

log10

  base 10 logarithm function

logb

  radix-independent exponent function

modf

  decompose floating point number

nextafter

  return next representable double-precision floating point number

pow

  power function

remainder

  floating point remainder function

rint

  round to nearest integral value

scalb

  load exponent of a radix-independent floating point number

sqrt

  square root function

y0,y1,yn

      Bessel functions of the second kind