### Archive

Archive for the ‘Math’ Category

## About writing LaTex Formulas online and on WordPress

Online LaTex Equation Editor (this is similar to Scientific Workplace)

Latex Lab Project (hosted at Google Code) and LaTex to PDF can help write LaTex codes and compile codes without installing MikTex system on your local computer.

Online instructions and forums:

The codes for the formula $cov(X,Y)=\mathbb{E}\left( cov(X,Y|Z)\right) +cov(\mathbb{E}(X|Z),\mathbb{E}(Y|Z))$ on WordPress.com are

$latex cov(X,Y)=\mathbb{E}\left( cov(X,Y|Z)\right) +cov(\mathbb{E}(X|Z),\mathbb{E}(Y|Z))$

where $latex must stick together without a space. The reason that I separated$ from the word latex is that I want to avoid that formula from being displayed again so that purely codes are shown above.

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