Function            isodd - is a number odd

  Syntax              #include <mathhk.h>
                      (boolean) isodd(x)

  Prototype in        mathhk.h

  Remarks             isodd checks if x is odd (not evenly divisible by
                      2).

                      This function is a macro.

  Return value        returns TRUE if x is odd, otherwise FALSE.

  See also            iseven()