demo_dnum0 Program

program demo_dnum0
use M_calculator, only : dnum0
implicit none
doubleprecision :: x,y,z
   X=DNUM0('20/3.4')
   Y=DNUM0('CI = 10 * sin(3.1416/4)')
   Z=DNUM0('CI')
   write(*,*)x,y,z
end program demo_dnum0