In this tutorial we are show you how to draw random mountain curves: The general idea is to define a recursive function that draw mountain curve given two end points.
In style similar to Fibonacci Spiral, draw the following Golden Spiral. Unlike Fibonacci tiling, the ratio between to successive squares is strictly golden ratio (1.61803398875). Please note that Golden Spiral
Given any three tangent circles, there are exactly two other circles that are tangent to the three circles. In this project, we are drawing one of the two tangent circles