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LaTex.

For instance:

\int_{a}^{b}f(x)dx

Some Greek letters:

{\alpha}, \;\ {\beta}, \;\ {\gamma}, \;\ {\delta}, \;\ {\epsilon}

I tried to fix this last post but it will not let me for some reason.

I was just teasing because it is spelled 'pi', not 'pie'. It's a Greek letter, not a pastry.

But, if you want to use LaTex type {\pi} surrounded by the tags.

Except put a slash in the last tag...

Anyone caught spelling {\pi} as 'pie' will be sent to a work camp. :rolleyes: