In this easy animation project, draw a rotating line. You may need to call tracer(0,0) before the animation and call update() function after drawing each frame. You may also want
In this tutorial we are going to show how to draw rectangles or squares with round corners. We will start by drawing the bottom straight-line with blue color. The following
In a previous project we draw real stock price charts by reading data from files. We also draw stock moving averages in this project. Download historical stock prices for Google, Apple, and SPY