floor(3)                            CLIX                            floor(3)



  NAME

    floor, ceil, fmod, fabs - Floor, ceiling, remainder, absolute value
    functions

  LIBRARY

    Standard Math Library (libm.a)

    Intergraph Math Library (libmath.a)

  SYNOPSIS

    #include <math.h>

    double floor(
      double x );

    double ceil(
      double x );

    double fmod(
      double x ,
      double y );

    double fabs(
      double x );

  PARAMETERS

    x   A double

    y   A double

  DESCRIPTION

    The floor() function returns the largest integer (as a double-precision
    number) not greater than x.

    The ceil() function returns the smallest integer not less than x.

    The fmod() function returns the floating-point remainder of the division
    of x by y: x if y is 0 or if x/y would overflow; otherwise, the number f
    with the same sign as x, such that x = iy + f for some integer i, and f<y.

    The fabs() function returns the absolute value of x, x.

  EXAMPLES

    To find the floor, ceiling and absolute values of x, and get x mod y:




  2/94 - Intergraph Corporation                                              1

  floor(3)                            CLIX                            floor(3)



    #include <math.h>

    main()
    {
         double x;
         double y;
         printf("What is the value of x?\n");
         scanf("%E",&x);
         printf("what is the value of y?\n");
         scanf("%E",&y);
         printf("Floor of x = %E.\n",floor(x));
         printf("Ceiling of x = %E.\n",ceil(x));
         printf("Absolute value of x = %E.\n",fabs(x));
         printf("x mod y = %E.\n",fmod(x,y));
    }


  RETURN VALUES

    See DESCRIPTION.

  RELATED INFORMATION

    Functions:  abs(3)






























  2                                              Intergraph Corporation - 2/94