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MathJax (TeX validator and converter) is a program which renders mathematical formulae in LaTeX-syntax and outputs graphics that are embedded in wiki articles.

Click on edit to view the LaTeX-syntax in between the math-tag.

Here are some examples of LaTeX output produced in this manner:

$\int_a^xf(\zeta\,z)\,dx$

$\int_1^\infty \frac{1}{k^2}\,dk$

$\sqrt{x^2+2x+1}=|x+1| - ((\frac{2x^2}{x})^2)^2$

$\ E = \sum_{i=1}^N e^{- J_{ij} \sigma_i \sigma_j}$

$\ \Phi = \frac{Q}{2\pi}\log(z-z_w)$

And here is a real case example, the Cauchy singular integral:

$\Omega(z) = \frac{1}{2\pi i}\int_{\Gamma}{\frac{\lambda(\delta)}{z-\delta}d\delta}$