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In the DRMF, the LaTeX semantic macro \Int represents the definite integral notation, which is defined as follows.

This macro is in the category of polynomials.

In math mode, this macro can be called in the following ways:

\Int{a}{b} produces Failed to parse (unknown function "\Int"): {\displaystyle {\displaystyle \Int{a}{b}}}
\Int{a}{b}@{x}{f(x)} produces Failed to parse (unknown function "\Int"): {\displaystyle {\displaystyle \Int{a}{b}@{x}{f(x)}}}

These are defined by Failed to parse (unknown function "\JacksonqBesselI"): {\displaystyle {\displaystyle \JacksonqBesselI{\nu}@{z}{q}:=\frac{\qPochhammer{q^{\nu+1}}{q}{\infty}}{\qPochhammer{q}{q}{\infty}} \left(\frac{z}{2}\right)^{\nu}\,\qHyperrphis{2}{1}@@{0,0}{q^{\nu+1}}{q}{-\frac{z^2}{4}}. }}

Symbols List

 : semantic definite integral :
 : Jackson -Bessel function 1 :
 : -Pochhammer symbol :
 : basic hypergeometric (or -hypergeometric) function :