Content markup for conditional expression

Hi, everyone:

I have a question for the content markup: how to markup a conditional
expression such as:

      f1(x)      x > 0
y = { f2(x)      x = 0
      fn(x)      otherwise

By reading through MathML, I can't find a way of doing it. But this kind of
expression is very basic in mathematics I believe.

I looked at the example in the software EzMath, where special markup tags
<ea> and <st> are used and they can not be found in MathML.

Can some one help me to answer this question?

Jian Li
Physiome Sciences, Inc.

Received on Friday, 25 June 1999 10:01:33 UTC