Hamilton's equations for double pendulum

AI Thread Summary
The discussion centers on a double pendulum simulation, specifically addressing confusion regarding the variables P1 and P2 in the equations provided on a referenced website. Users are questioning whether these variables are typos and should instead be Pθ1 and Pθ2. The consensus is that the original variables are indeed incorrect and should be replaced with Pθ1 and Pθ2 for clarity. This correction is essential for accurately implementing Hamilton's equations in the simulation. The conversation emphasizes the importance of precise variable notation in physics equations.
Daniel1992
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At the bottom of the following website are the 4 equations that I am using for a double pendulum simulation.

http://scienceworld.wolfram.com/physics/DoublePendulum.html

The equation for C2 has the variables P1 and P2 and I can't work out what they are.:confused:

Is it a typo and they are meant to be Pθ1 and Pθ2?

Any help would be much appreciated.
 
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Daniel1992 said:
Is it a typo and they are meant to be Pθ1 and Pθ2?

Yes.
 

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