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June 22nd, 2017, 07:58 AM  #1 
Newbie Joined: Jun 2017 From: USA Posts: 1 Thanks: 0  How to solve this DE for a rotational system
This equation comes as we try to solve for the trajectory of a man walking on a rotating disc. We can surely solve it numerically, but I was wondering if there are any closed form solution to this. Python SymPy fails to do it. dR/dt = v*sin(phi+theta) d(phi)/dt = (v/R)*cos(phi+theta)+w R (radial location) and phi (angle) are functions of time t. v, theta and w are constants. Please let me know if you would need more information. 

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rotational, solve, system 
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