Math functions:

QLIB v2.00 currently has the following ANSI C compatible math functions:

  f_abs()  ;same as fabs() except renamed due to assembler reasons
           ;although there is a
           ; #define fabs f_abs
           ;in the qlib.h file so C program will have no problem
           ;ASM programs must use f_abs()

  sin(), cos(), tan()

  ceil(), floor()

  log(), log2(), log10()

  pow()

Notes:
  - all math functions use 'double' precision only.  You may use float in C
    programs but you must use REAL8 in ASM because callp will not expand
    a float into a real8 (unless you use INVOKE which sux)
  - the value returned is always returned in ST(0), even when using
    Watcom [Since v2.10]
  - all of these functions are built right into QLIB.LIB
  - you must include QLIB.H into your C/C++ programs if you are using
    Watcom to force Watcom to use the right calling conventions.

