I am trying to fit a Golden Spiral to a window - [like this|http://upload.wikimedia.org/wikipedia/commons/9/93/Fibonacci_spiral_34.svg].
I'm using the polar equation from the [Golden Spiral wiki article|http://en.wikipedia.org/wiki/Golden_spiral].
EDIT: Solved! I chose a random value for A and then numerically iterated to find the enclosing rectangle for that value. I then scaled A to fit my window.
I came up with a value of ~733.3117 degrees for it to fit.