! Program Example from "Essential Fortran 90 & 95" by Loren P. Meissner
! Copyright 1996. Copying for sale requires permission from the author.
! Otherwise, distribution is permitted if these three lines are included.

! Example P.1. (Maria Flores, 1 October, 1999)
! Write the values of "pi" and "e."
  program A01    ! (specification statement)
    implicit none  ! (specification statement)
! start program A01
    write (unit = *, fmt = *) atan2( 0.0, -1.0 ), exp( 1.0 )  ! (instruction)
    stop  ! (instruction)
  end program A01  ! (specification statement)

