A MathML Example: The “Quadratic Formula”

William F. Hammond

This is an XHTML document with MathML markup prepared using the basic layer of GELLMU and the XML namespaces regime for extending the basic tagset of XHTML.

The quadratic equation a x2 + b x + c = 0 has roots

x = -b ± b2 - 4 ac 2 a .