ldexp() and ldexpf()

  #include <math.h>

  

  double ldexp (double x, int exp);

  

  float  ldexpf(float x, int exp);

  

ldexp() multiplies x by 2exp.

x * 2exp. If this function fails because the result is too large, both ldexp() and ledxpf() return HUGE_VAL and set errno to ERANGE.

exp() and expf()

frexp() and frexpf()

log() and logf()

log10() and log10f()

modf() and modff()