Just a simple octagon? Or is it? How many other shapes can you find?
Figure of Eight is very easy to make because it is worked entirely in garter stitch, using one yarn at a time. You could make it more subtle. You can even leave off the outer shapes and have an 8-pointed star.
It is based on mathematical principles but you don't need to know that follow the pattern.
Designed by mathekniticians Pat Ashforth and Steve Plummer