ASCIIMath Formulae

ASCIIMath is a clever JavaScript written by Peter Jipsen that dynamically transforms mathematical formulae written in a wiki-like plain text markup to MathML markup which is displayed as standard mathematical notation by the Web Browser. See Appendix E in the AsciiDoc User Guide for more details.

The AsciiDoc xhtml11 backend supports ASCIIMath — it links the ASCIIMath script and escapes ASCIIMath delimiters and special characters to yield valid XHTML. To use ASCIIMath:

Include the -a asciimath command-line option when you run asciidoc(1).
Enclose ASCIIMath formulas inside math or double-dollar passthroughs or in math passthrough blocks.

Here’s the AsciiDoc source that generated this page.

NOTE

When you use the asciimath:[] inline macro you need to escape ] characters in the formulas with a backslash, escaping is unnecessary if you use the double-dollar macro (for examples see the second formula below).
See the ASCIIMath website for ASCIIMath documentation and the latest version.
If the formulas don’t appear to be correct you probably need to install the correct math fonts (see the ASCIIMath website for details).
See the LaTeXMathML page if you prefer to use LaTeX math formulas.

A list of example formulas:

`[[a,b],[c,d]]((n),(k))`
`x/x={(1,if x!=0),(text{undefined},if x=0):}`
`d/dxf(x)=lim_(h->0)(f(x+h)-f(x))/h`
`sum_(i=1)\^n i=(n(n+1))/2`$ and bold `int_0\^(pi/2) sinx\ dx=1`
`(a,b]={x in RR : a < x <= b}`
`x^2+y_1+z_12^34`

The first three terms factor to give `(x+b/(2a))^2=(b^2)/(4a^2)-c/a`.

`x+b/(2a)=+-sqrt((b^2)/(4a^2)-c/a)`.

Now we take square roots on both sides and get `x+b/(2a)=+-sqrt((b^2)/(4a^2)-c/a)`. Finally we move the `b/(2a)` to the right and simplify to get the two solutions: `x_(1,2)=(-b+-sqrt(b^2-4ac))/(2a)`.