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What is LaTeX?

LaTeX is widely used in academia. It is also used as the primary method of displaying formulas.

Some examples of LaTeX

Formula LaTeX representations
`n^5 + 4n^2` `n^5 + 4n^2`
`\5frac{3}{8}` `\5frac{3}{8}`
`f(n) = n^5 + 4n^2 + 2 |_{n=17}` `f(n) = n^5 + 4n^2 + 2 |_{n=17}`
`\frac{n!}{k!(n-k)!} = \binom{n}{k}` `\frac{n!}{k!(n-k)!} = \binom{n}{k}`
`P\left(A=2\middle|\frac{A^2}{B}>4\right)` `P\left(A=2\middle|\frac{A^2}{B}>4\)`

More examples and symbols
LaTeX symbol dictionary
LaTeX symbol dictionary 2
2 steps to use LaTeX in iClass

It is currently implemented in MC Questions.