# Test

#### studiot

$$\displaystyle \left( {\begin{array}{*{20}{c}} {{a_{11}}} & {{a_{12}}} \\ {{a_{21}}} & {{a_{22}}} \\ \end{array}} \right)$$

$$\displaystyle \sum\nolimits_{n = 1}^\infty {{n^2}}$$

$$\displaystyle \sum\nolimits_{n = 1}^\infty {{n^2}}$$

$$\displaystyle \sqrt {{a^2} + {b^2}}$$

$$\displaystyle \sqrt {{a^2} + {b^2}}$$

So mathml now works here, that's really useful.

not sure what's wrong with the tex version though.

Last edited:

#### topsquark

Forum Staff
$$\displaystyle \left( {\begin{array}{*{20}{c}} {{a_{11}}} & {{a_{12}}} \\ {{a_{21}}} & {{a_{22}}} \\ \end{array}} \right)$$

$$\displaystyle \sum\nolimits_{n = 1}^\infty {{n^2}}$$

$$\displaystyle \sum\nolimits_{n = 1}^\infty {{n^2}}$$

$$\displaystyle \sqrt {{a^2} + {b^2}}$$

$$\displaystyle \sqrt {{a^2} + {b^2}}$$

So mathml now works here, that's really useful.

not sure what's wrong with the tex version though.
There isn't anything wrong with the coding, it's just that the tex tags don't work any more.

-Dan

Thanks.

#### kiwiheretic

$$\displaystyle \left( {\begin{array}{*{20}{c}} {{a_{11}}} & {{a_{12}}} \\ {{a_{21}}} & {{a_{22}}} \\ \end{array}} \right)$$

$$\displaystyle \sum\nolimits_{n = 1}^\infty {{n^2}}$$

$$\displaystyle \sum\nolimits_{n = 1}^\infty {{n^2}}$$

$$\displaystyle \sqrt {{a^2} + {b^2}}$$

$$\displaystyle \sqrt {{a^2} + {b^2}}$$

So mathml now works here, that's really useful.

not sure what's wrong with the tex version though.
testing....

$$\displaystyle \frac{1}{\sqrt{1-\frac{v^2}{c^2}}}$$