Help:Equations

General rules

• <math>...</math> - formula must be in MATH tag.
• \frac{first line}{second line} - fraction

${\frac {firstline}{secondline}}$

• \cdot - multiplication sign (don't use x, unless you multiply arrays)

$a\cdot b$

• \sqrt{} - square root

${\sqrt {2}}$

• &sigma; - greek letters

Failed to parse (syntax error): {\displaystyle &sigma;}

• \sum_{k=1}^N k^2 - sum, power

$\displaystyle \sum _{k=1}^{N}k^{2}$

Full rules are available on Mediawiki site: Formula.

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