Let $\overline T$ 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 $\overline T.$
Or just find $\Delta \theta.$ 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?