UNIX 7th Ed. - /usr/include/math.h

   1: extern double fabs(), floor(), ceil(), fmod(), ldexp();
   2: extern double sqrt(), hypot(), atof();
   3: extern double sin(), cos(), tan(), asin(), acos(), atan(), atan2();
   4: extern double exp(), log(), log10(), pow();
   5: extern double sinh(), cosh(), tanh();
   6: extern double gamma();
   7: extern double j0(), j1(), jn(), y0(), y1(), yn();
   8: 
   9: #define HUGE    1.701411733192644270e38
  10: #define LOGHUGE 39

Defined macros

Usage of this include