diff ( y , x , 1 ) = 2.0 / (0.2 * x + 0.3); ! Digits := 32; max_terms := 30; ! x_start := 3.1; x_end := 2.5; diff(y,0,exact_soln_y(x_start)); glob_look_poles := true; # glob_max_h := 0.001; # glob_upper_ratio_limit := 1.01; ##glob_lower_ratio_limit := 0.99; glob_display_interval := 0.1; # # Not Given = 0 # Real = 1 # Complex = 2 # No Pole = 3 # Impossible Eq = 4 # glob_type_given_pole := 1; # Real Part array_given_rad_poles[1,1] := -1.5; # Imag Part array_given_rad_poles[1,2] := 0.0; # Order array_given_ord_poles[1,1] := 1.0; # Not Used array_given_ord_poles[1,2] := 0.0; ! exact_soln_y := proc(x) return(10.0* ln(0.2* x + 0.3)); end;