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-- Input variableslocal angle = math.PI/3 -- 60 degrees, arbitrarily chosenlocal x, y = 12, 53 -- Cursor offsets, arbitrarily chosen-- Algorithmlocal u, v = math.cos(angle), math.sin(angle)local dp = (x*u + y*v) -- Vector dot productlocal projX, projY = dp*x, dp*y-- The radius is the length of the vector, or sqrt(x^2 + y^2)local radius = sqrt(projX^2 + projY^2);return radius;