..
  Copyright 1988-2022 Free Software Foundation, Inc.
  This is part of the GCC manual.
  For copying conditions, see the copyright.rst file.

.. _math-library-routines:

Math Library Routines
---------------------

The following mathematical functions are available:

* :samp:`{acosq}`:  arc cosine function
* :samp:`{acoshq}`:  inverse hyperbolic cosine function
* :samp:`{asinq}`:  arc sine function
* :samp:`{asinhq}`:  inverse hyperbolic sine function
* :samp:`{atanq}`:  arc tangent function
* :samp:`{atanhq}`:  inverse hyperbolic tangent function
* :samp:`{atan2q}`:  arc tangent function
* :samp:`{cbrtq}`:  cube root function
* :samp:`{ceilq}`:  ceiling value function
* :samp:`{copysignq}`:  copy sign of a number
* :samp:`{coshq}`:  hyperbolic cosine function
* :samp:`{cosq}`:  cosine function
* :samp:`{erfq}`:  error function
* :samp:`{erfcq}`:  complementary error function
* :samp:`{exp2q}`:  base 2 exponential function
* :samp:`{expq}`:  exponential function
* :samp:`{expm1q}`:  exponential minus 1 function
* :samp:`{fabsq}`:  absolute value function
* :samp:`{fdimq}`:  positive difference function
* :samp:`{finiteq}`:  check finiteness of value
* :samp:`{floorq}`:  floor value function
* :samp:`{fmaq}`:  fused multiply and add
* :samp:`{fmaxq}`:  determine maximum of two values
* :samp:`{fminq}`:  determine minimum of two values
* :samp:`{fmodq}`:  remainder value function
* :samp:`{frexpq}`:  extract mantissa and exponent
* :samp:`{hypotq}`:  Eucledian distance function
* :samp:`{ilogbq}`:  get exponent of the value
* :samp:`{isinfq}`:  check for infinity
* :samp:`{isnanq}`:  check for not a number
* :samp:`{issignalingq}`:  check for signaling not a number
* :samp:`{j0q}`:  Bessel function of the first kind, first order
* :samp:`{j1q}`:  Bessel function of the first kind, second order
* :samp:`{jnq}`:  Bessel function of the first kind, {n}-th order
* :samp:`{ldexpq}`:  load exponent of the value
* :samp:`{lgammaq}`:  logarithmic gamma function
* :samp:`{llrintq}`:  round to nearest integer value
* :samp:`{llroundq}`:  round to nearest integer value away from zero
* :samp:`{logbq}`:  get exponent of the value
* :samp:`{logq}`:  natural logarithm function
* :samp:`{log10q}`:  base 10 logarithm function
* :samp:`{log1pq}`:  compute natural logarithm of the value plus one
* :samp:`{log2q}`:  base 2 logarithm function
* :samp:`{lrintq}`:  round to nearest integer value
* :samp:`{lroundq}`:  round to nearest integer value away from zero
* :samp:`{modfq}`:  decompose the floating-point number
* :samp:`{nanq}`:  return quiet NaN
* :samp:`{nearbyintq}`:  round to nearest integer
* :samp:`{nextafterq}`:  next representable floating-point number
* :samp:`{powq}`:  power function
* :samp:`{remainderq}`:  remainder function
* :samp:`{remquoq}`:  remainder and part of quotient
* :samp:`{rintq}`:  round-to-nearest integral value
* :samp:`{roundq}`:  round-to-nearest integral value, return {__float128}
* :samp:`{scalblnq}`:  compute exponent using {FLT_RADIX}
* :samp:`{scalbnq}`:  compute exponent using {FLT_RADIX}
* :samp:`{signbitq}`:  return sign bit
* :samp:`{sincosq}`:  calculate sine and cosine simultaneously
* :samp:`{sinhq}`:  hyperbolic sine function
* :samp:`{sinq}`:  sine function
* :samp:`{sqrtq}`:  square root function
* :samp:`{tanq}`:  tangent function
* :samp:`{tanhq}`:  hyperbolic tangent function
* :samp:`{tgammaq}`:  true gamma function
* :samp:`{truncq}`:  round to integer, towards zero
* :samp:`{y0q}`:  Bessel function of the second kind, first order
* :samp:`{y1q}`:  Bessel function of the second kind, second order
* :samp:`{ynq}`:  Bessel function of the second kind, {n}-th order
* :samp:`{cabsq}`:  complex absolute value function
* :samp:`{cargq}`:  calculate the argument
* :samp:`{cimagq}`:  imaginary part of complex number
* :samp:`{crealq}`:  real part of complex number
* :samp:`{cacoshq}`:  complex arc hyperbolic cosine function
* :samp:`{cacosq}`:  complex arc cosine function
* :samp:`{casinhq}`:  complex arc hyperbolic sine function
* :samp:`{casinq}`:  complex arc sine function
* :samp:`{catanhq}`:  complex arc hyperbolic tangent function
* :samp:`{catanq}`:  complex arc tangent function
* :samp:`{ccosq}`:  complex cosine function
* :samp:`{ccoshq}`:  complex hyperbolic cosine function
* :samp:`{cexpq}`:  complex exponential function
* :samp:`{cexpiq}`:  computes the exponential function of 'i' times a real value
* :samp:`{clogq}`:  complex natural logarithm
* :samp:`{clog10q}`:  complex base 10 logarithm
* :samp:`{conjq}`:  complex conjugate function
* :samp:`{cpowq}`:  complex power function
* :samp:`{cprojq}`:  project into Riemann Sphere
* :samp:`{csinq}`:  complex sine function
* :samp:`{csinhq}`:  complex hyperbolic sine function
* :samp:`{csqrtq}`:  complex square root
* :samp:`{ctanq}`:  complex tangent function
* :samp:`{ctanhq}`:  complex hyperbolic tangent function