title: How to find a point where a line intersects an ellipse in 2D (C#)
body: <p>I need to find a point where a line (its origin is ellipse' center) intersects an ellipse in 2D... I can easily find a point on a circle, because I know an angle F and the circle' radius (R):</p>
  
  <pre><code>x = x0 + R * cosF
  y = y0 + R * sinF
  </code></pre>
  
  <p>However I just can't figure how am I supposed to deal with an ellipse... I know it's dimensions (A &amp; B), but what is the way of finding parameter T?!</p>
  
  <pre><code>x = x0 + A * cosT
  y = y0 + B * sinT
  </code></pre>
  
  <p>From what I understand the parameter T (T angle) is not far from the F angle (approximately +-15 degrees in some cases), but I just can't figure how to calculate it!!!</p>
  
  <p>If there is a kind hearted soul, please help me with this problem...</p>