Change the variable and press space to draw a pretty pattern, or maybe not so pretty, depends on what variables you used, especially for the coefficient. press space to redraw. NOW, this version lets you make patterns with... irregular shapes. press "t" to start drawing, then use the mouse to click at points or arrow keys for more precision to create your shape. "x" to stop tracing. I hope you like it! (note: this project can be used to create "string-art" like pictures)