{"type":"rich","version":"1.0","title":"[modes, using tickers] Fourier Series (Built on Drawing Applet) [Using the \"Filling in Gaps\" func. here which is more efficient]","html":"<iframe src=\"https://www.desmos.com/calculator/1phbrghuhc?embed\" width=\"500px\" height=\"500px\" style=\"border: 1px solid #ccc\" frameborder=0></iframe>","width":500,"height":500}