For example:

$$f(x)=\int_{-\infty}^x~e^{-t^2}dt$$

or

$$\sum_{k=1}^N k^2$$

Isn't that just wonderful?

For embedding the TeX code, please use

Code: Select all

`[tex][/tex]`

For example, the source code for formulas above was:

Code: Select all

```
[tex]f(x)=\int_{-\infty}^x~e^{-t^2}dt[/tex]
[tex]\sum_{k=1}^N k^2[/tex]
```