{"type":"rich","version":"1.0","title":"half-function of x^2 + 1 | f(f(x)) = x^2 + 1","html":"<iframe src=\"https://www.desmos.com/calculator/maeg72pram?embed\" width=\"500px\" height=\"500px\" style=\"border: 1px solid #ccc\" frameborder=0></iframe>","width":500,"height":500}