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2 questions with no upvoted or accepted answers
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2D rotation dynamics/control systems as a complex number

I have a dynamic system (it's a rocket in a 2D plane), that I'd like to model the orientation of using complex numbers to remove the need for trig functions in my ode. I'm having trouble defining the ...
gigs's user avatar
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Integration of equation of motion in polar coordinates

We have the equation of motion in polar coordinates: $$\frac{d^{2}\vec r}{dt^2} = (\frac{d^2 |\vec r|}{dt^2} - |\vec r|\cdot (\frac{d\theta}{dt})^2)\hat r + (|\vec r|\cdot \frac{d^2\theta}{dt^2}+2\...
Toni Ivanov's user avatar