Fibonacci Curve

[Rik]

Rik,
Draw a line with the Shape tool clicking on respective square points and then go back and pull out the handles to cleanup the arcs. You can check/align each arc by drawing a circle separately. Delete the circles and you're left with a continuous line. HTH

Is it not easier, as gwp has said and what I did, is to draw a circle and cut the 1/4 out of it.
That way, in my opinion, the arc is accurate.

In fact, to get the correct size of circle, all you need is to draw a square 100px x 100px, Then draw a circle of twice the size. i.e. 200px
Then align the quarter of the circle over the square.

However...
The continuous line that you mention, Fred, is a collection of points, which is the same as the arcs joined together.
Isn't it?