diff --git a/README.md b/README.md index 35ddb59..a643633 100644 --- a/README.md +++ b/README.md @@ -1,12 +1,12 @@ Spirographs! -![Screenshot of v1](https://frozendev.tk/~amr/images/spirographs_v1.png) +![Screenshot of software](https://frozendev.tk/~amr/images/spirographspy.png) Everyone who grew up playing with this toy remembers it fondly. Very cool shapes and patterns. Recently, I was wondering if there was a mathematical formula describing the shapes created by Spriographs, and of course there is! -They're actually quite simple. The shapes are called [hypotrochoids](https://en.wikipedia.org/wiki/Hypotrochoid) and [epitrochoids](https://en.wikipedia.org/wiki/Epitrochoid). To calculate each point, you simple use the following parametrized equations, plugging in 0 to 2π for θ: +They're actually quite simple. The shapes are called [hypotrochoids](https://en.wikipedia.org/wiki/Hypotrochoid) and [epitrochoids](https://en.wikipedia.org/wiki/Epitrochoid). To calculate each point, you simple use the following parametrized equations, plugging in 0 to 2π for θ: -![](https://frozendev.tk/~amr/images/hypotrochoid.png) +![](https://frozendev.tk/~amr/images/hypotrochoid.png) ![](https://frozendev.tk/~amr/images/epitrochoid.png)