I admit I am a bit out of practice when it comes to DiffEq. I think I am either forgetting a simple step or getting my methods mixed up.
Homework Statement
The problem concerns a pendulum defined by
d2θ/dt2 + (c/mL)(dθ/dt) + (g/L)sinθ = 0
where m=1, L=1, c=0.5, and of course g=9.8
After...