• http://asciimath.org/ Ascii Math webpage
• https://docs.mathjax.org MathJax
• When {`a != 0`}, there are two solutions to {`ax^2 + bx + c = 0`} and they are
• {`x_(1,2) = (-b +- sqrt(b^2-4ac))/(2a) .`}
• sum: {`sum_(i=1)^n i^3=((n(n+1))/2)^2`}