What are the Arithmetic and math functions available in C?

Exponential and logarithmic functions

  • exp - Compute exponential
  • log - Compute natural logarithm
  • log10 - Compute common logarithm
  • modf - Break into fractional and integral parts
  • exp2 - Compute binary exponential function
  • expm1 - Compute exponential minus one
  • ilogb - Integer binary logarithm
  • log1p - Compute logarithm plus one
  • log2 - Compute binary logarithm
  • logb - Compute floating-point base logarithm

Power functions

  • pow - Raise to power
  • sqrt -Compute square root

Rounding and remainder functions

  • ceil - Round up value
  • floor - Round down value
  • fmod - Compute remainder of division
  • trunc - Truncate value
  • round - Round to nearest

Floating-point manipulation functions

  • copysign - Copy sign
  • nan - Generate quiet NaN
  • nextafter - Next representable value
  • nexttoward - Next representable value toward precise value

Minimum, maximum, difference functions

  • fdim - Positive difference
  • fmax - Maximum value
  • fmin - Minimum value

Other functions

  • fabs - Compute absolute value
  • abs - Compute absolute value
  • fma - Multiply-add

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