How can one print the output from the statements executed within a loop as the loop outputs only the last calculation.

I have a 2nd-order differential equation dEq and a set of initial conditions initC. I solved the equation by: soln := dsolve({dEq, initC}, numeric) the solution should be in the form r(theta) = blah blah Now I want to plot a graph of theta and r so I used with(plots); polarplot(soln, theta = 0 .. 2*Pi); which didn't work out!! I don't know what might be the problem. Please help thanks

Is it possible to plot a second-order differential equation without specifying the initial conditions?

Does anyone know how to type theta with a double dot on top of it as a second time derivative in maple 10?

I have a second-order differential equation dEq := diff(theta(t), t, t) = sin(theta(t)) i would like to find the solution of it, so soln := dsolve({dEq, theta(0) = 0, (D(theta))(0) = 0}, theta(t)) and then plot the solution, that is plot 'theta' vs. 't' but the solution contains weird charecters and I tried many examples on the net but never worked out for me. Can you guys help? thank you in advance.