diff ( y , x , 1 ) = expt ( 2.0 * x + 1.0 , sin ( x ) ) * ( cos ( x ) * ln ( 2.0* x + 1.0 )+ ( 2.0 * sin ( x ) ) / ( 2.0 * x + 1.0 ) ); ! # Comment 1 Digits := 32; max_terms := 30; # Comment 2 ! # Comment 3 x_start := 0.1; x_end := 1.0 ; diff(y,0,exact_soln_y(x_start)); glob_look_poles := true; glob_max_iter := 1000000; # Comment 4 ! # Comment 5 exact_soln_y := proc(x) # Comment 6 return(expt(2.0*x+1.0,sin(x))); # Comment 7 end;