## Math Notation Help

\left\|af\right\| = \left|a\right|\left\|f\right\|$$ Keyword(s): norm ### E #### epsilon (lower case greek letter)$$\epsilon$gives$\epsilon$$#### equals @@x=2@@ is  Keyword(s): =equals #### escaping the TeX filter • With two triple 's embracing an expression you can make the filter to escape and the code itself is shown (with two embracing double 's). • Ex.:$$$a^2$$produces$$a^2$$, i.e. prevents the filter to render it as a formula gif.  Keyword(s): escape; suppress filter; prevent from filtering #### eta (lower case greek letter)$$\eta$gives$\eta$\$

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