mv change_o.c change_order.c
mv copy_mat.c copy_matrix.c
mv factoria.c factorial.c
mv find_pro.c find_probab.c
mv frange_r.c frange_ran.c
mv operator.c operators.c
mv p_equali.c p_equalities.c
mv print_fo.c print_format.c
mv read_wri.c read_write.c
