When I was very young, and an enthusiastic drawer, I remember , quite clearly, asking a friends to give me something interesting to draw.
My friend told me to draw a perfect circle free hand.
Now, to the child version of me, that was not interesting to draw. I was interested in putting down something from my mind on paper, but it needed a certain amount of imagination to it.
Looking back on it though, I know that my friend had wanted to give me a challenge.
Over a decade later I took on the challenge, having realised how I could give it an imaginative twist. Playing with the mathematical way of drawing a perfect curve on a graph.