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File:AsincmapT.png z_type sinc(z_type z){ DB x=Re(z); DB y=Im(z); if(x*x+y*y>.01) return sin(z)/z; if(x*x+y*y>.01) return (cos(z)-sinc(z))/z;(1,759 × 1,746 (896 KB)) - 09:41, 21 June 2013File:AsincplotT500.png z_type sinc(z_type z){ DB x=Re(z); DB y=Im(z); if(x*x+y*y>.01) return sin(z)/z; if(x*x+y*y>.01) return (cos(z)-sinc(z))/z;(843 × 2,014 (184 KB)) - 09:41, 21 June 2013File:SincmapT100.png [[Complex map]] of function [[sinc]]. $f=\mathrm{sinc}(x+\mathrm i y) $ is shown in the $x$, $y$ plane with levels(2,284 × 1,164 (1.63 MB)) - 09:41, 21 June 2013File:SincplotT.png Plotof finction [[sinc]] (thick blue curve) and that of [[cosc]]. \put(168, 189){\sx{2.7}{\rot{0}$y\!=\!\mathrm{sinc}(x)$\ero}} %<br>(3,350 × 1,001 (221 KB)) - 09:41, 21 June 2013