## Math Notation Help

f(x)=3a+x$$#### contour integral • General syntax for symbols with a kind of lower and upper limits: \symbolname_{lowerexpression}^{upperexpression} • In general, there are two ways how these lower and upper expressions can be placed: centered below and above the symbol or in a subscript / superscript manner. In the first case the symbol name is preceded by the word "big", in the second there is no prefix. • Syntax for the contour integral symbol:$$\bigoint_{0}^{\infty}gives

\bigoint_{0}^{\infty}

and

\oint_{0}^{\infty}

$gives $\oint_{0}^{\infty}$ • Use font size commands for a nicer picture: $$\LARGE\bigoint_{\small0}^{\small\infty}gives \LARGE\bigoint_{\small0}^{\small\infty} and \large\oint_{\small0}^{\small\infty} gives $\large\oint_{\small0}^{\small\infty}$ #### coproduct • General syntax for symbols with a kind of lower and upper limits: \symbolname_{lowerexpression}^{upperexpression} • In general, there are two ways how these lower and upper expressions can be placed: centered below and above the symbol or in a subscript / superscript manner. In the first case the symbol name is preceded by the word "big", in the second there is no prefix. • Note: mimeTeX seems currently only to support the \bigcoprod command. • Syntax for coproduct symbol:$$\bigcoprod_{i=k}^{n}gives \bigcoprod_{i=k}^{n} • Use font size commands for a nicer picture: \LARGE\bigcoprod_{\small{i=k}}^{\small~n}$   gives

$\LARGE\bigcoprod_{\small{i=k}}^{\small~n}$

 Keyword(s): coprod

### D

#### delimiters (overview)

 Delimiters (parentheses, braces, brackets. ...) Command Example Result \left(... \right) $$2\left(a+b\right)2~\left(a+b\right)$$ \left[... \right] $$\left[a^2+b^2~\right]\left[a^2+b^2~\right]$$ \left{... \right} $$\left{x^2, x^3, x^4,... \right}\left{x^2, x^3, x^4,... \right}$$ \left\langle... \right\rangle $$\left\langle a,b~\right\rangle\left\langle a,b~\right\rangle$$ \left| ... \right| $$\det\left|\array{a&b\\c&d}\right| \det\left|\array{a&b\\c&d}\right|$$ \left\| ... \right\| $$\left\|f~\right\|\left\|f~\right\|$$ \left{ ... \right.(note the dot!) $$f(x)=\left{{x^2, \rm~if x>-1\atop~0, \rm~else}\right.(\rm switches to roman style)f(x)=\left{{x^2, \rm~if x>-1\atop~0, \rm~else}\right.$$ \left.{ ... \right\}(note the dot!) $$\left.{{\rm~term1\atop\rm~term2}\right}=y\left.{{\rm~term1\atop \rm~term2}\right}=y$$

Note: The delimiters are automatically sizes.

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