Let ¯T be a line crossing the point P. Let P′ be some other point on the 2d plane. Find the equation for the circle that passes through P,P′, and is tangent to ¯T.
Or just find Δθ. I need this for robotics (for positional driving and stuff)
It seems like this is only a part of a question.
I know that the gradient of T' is tan(theta)
so I know that the gradient of OP is -cot(theta)
Which points are fixed?
Can you describe the situation better please?
Nvm i got it.
Thanks for your response.
I am still interested in your question.
I would have liked you to explain it. So I at least understood the question.
+5 
