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 integral symbol:

$$\bigint_{0}^{\infty}$   gives   </p><p align="center">\bigint_{0}^{\infty} </p><p align="center">and</p><p align="center">$$\int_{0}^{\infty}$   gives 

\int_{0}^{\infty}

  • Use font size commands for a nicer picture:

$$\LARGE\bigint_{\small0}^{\small\infty}$   gives   </p><p></p><p align="center">\LARGE\bigint_{\small0}^{\small\infty} </p><p align="left"></p><p align="center">and</p><p align="center">$$\large\int_{\small0}^{\small\infty}$   gives 

\large\int_{\small0}^{\small\infty}

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