# What does the long curly line mean?

Sorry to sound incredibly ignorant, but I am...at least in math anyway. What does this symbol: $\int$ mean?

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You might want to look through wiki article on integration. –  Sasha Sep 6 '11 at 0:24
There's no need to be so apologetic. We're all here to learn. –  Austin Mohr Sep 6 '11 at 0:41
This is the symbol for integration. You may have seen it in Calculus. For example, $$\int x \, dx = \frac{1}{2}x^2 + C$$