program demo_lala use M_matrix, only : lala, put_into_lala, get_from_lala, ifin_lala call lala("A=10;who") ! read a file containing lala(3f) commands call lala("exec('mycommands');") call lala("exec('mycommands2');") ! interactively interact with lala(3f) interpreter call lala() end program demo_lala