In mathematics, physics and engineering, the sinc function ( SINK), denoted by sinc(x), is defined as either sinc ( x ) = sin x x . {\displaystyle \operatorname {sinc} (x)={\frac {\sin x}{x}}.} or sinc ( x ) = sin π x π x , {\displaystyle \operatorname {sinc} (x)={\frac {\sin \pi x}{\pi x}},} the latter of which is sometimes referred to as the normalized sinc function.
In mathematics, physics and engineering, the sinc function ( SINK), denoted by sinc(x), is defined as either sinc ( x ) = sin x x . {\displaystyle \operatorname {sinc} (x)={\frac {\sin x}{x}}.} or sinc ( x ) = sin π x π x , {\displaystyle \operatorname {sinc} (x)={\frac {\sin \pi x}{\pi x}},} the latter of which is sometimes referred to as the normalized sinc function.
Source: Wikipedia "Sinc function" · CC BY-SA 4.0
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