Arrays

<applet codebase="../classes" code="geom.webeq.app.mdraw" height=200 width=400>
<param name=eq value="X = \left ( \array{1 & x \\ 0 & 1} \right )"> 
</applet>

<applet codebase="../classes" code="geom.webeq.app.mdraw" height=200 width=400>
<param name=eq value="f(x) = \left \{
\array{\arrayopts{\collayout{left center left}}
0 & \text{when} & x < 0\\ x^2 & \text{when} & x \geq 0} \right"> 
</applet>

<applet codebase="../classes" code="geom.webeq.app.mdraw" height=3000 width=400>
<param name=eq value="M = \left [\array{\arrayopts{\collayout{center dashed center}}
\rowopts{\underline{dashed}} \array{1 & x_1 & \cdots & x_1^n \\
1 & x_2 & \cdots & x_2^n \\ \vdots & & & \vdots \\ 1 & x_n & \cdots &
x_n^n} & 0 \\ 0 & 1} \right ]">
</applet>