Reference: redraw
redraw(0) redraws the current 2D visualization window.
Example: spiral ≔ createImage("❨FresnelC(t), FresnelS(t)❩", "t", [-10, 10, 0.01])
drawLines("spiral")
spiral ≔ createImage("❨FresnelS(t), FresnelC(t)❩", "t", [-10, 10, 0.01])
redraw(0)