I created such a daisy-chained page that uses ASCIIMathML input with KaTeX rendering where possible, and it falls back to MathJax when KaTeX can't handle the ex

I created such a daisy-chained page that uses ASCIIMathML input with KaTeX rendering where possible, and it falls back to MathJax when KaTeX can't handle the expression. See http://www.intmath.com/cg5/asciimathml-katex-mathjax.php http://www.intmath.com/cg5/asciimathml-katex-mathjax.php