#### androsnich

##### Civil/Environmental

Or: What is the Line Perpendicular to the Ellipse?

What is a good method to determine the shortest distance from a point to an Ellipse? This is similar to finding the line through a given point that is perpendicular to an ellipse.

To make it simple, I have the ellipse centered at the origin, (0,0), and the major axis along x. Also the point is always in quadrant I, and is always outside the ellipse.

Thanks for your help,

Harry