EXP(3M)                 GENIX Programmer's Manual                 EXP(3M)



      NAME
           exp, log, log10, pow, sqrt - exponential, logarithm,  power,  square
           root

      SYNOPSIS
           #include <math.h>

           double exp(x)
           double x;

           double log(x)
           double x;

           double log10(x)
           double x;

           double pow(x, y)
           double x, y;

           double sqrt(x)
           double x;

      DESCRIPTION
           Exp returns the exponential function of x.

           Log returns the natural logarithm of x; log10 returns  the  base  10
           logarithm.

                        y
           Pow returns x .

           Sqrt returns the square root of x.

      SEE ALSO
           hypot(3), sinh(3), intro(2)

      DIAGNOSTICS
           Exp and pow return a huge value when the correct value  would  over-
           flow;  errno is set to ERANGE.  Pow returns 0 and sets errno to EDOM
           when the second argument is negative and non-integral and when  both
           arguments are 0.

           Log returns 0 when x is zero or negative; errno is set to EDOM.

           Sqrt returns 0 when x is negative; errno is set to EDOM.











      Printed 11/16/83                                                        1