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-rw-r--r--Build/source/utils/asymptote/examples/sinc.asy24
1 files changed, 24 insertions, 0 deletions
diff --git a/Build/source/utils/asymptote/examples/sinc.asy b/Build/source/utils/asymptote/examples/sinc.asy
new file mode 100644
index 00000000000..352585bdbe4
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+++ b/Build/source/utils/asymptote/examples/sinc.asy
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+import graph3;
+import contour;
+
+currentprojection=orthographic(1,-2,1);
+currentlight=White;
+
+size(12cm,0);
+
+real sinc(pair z) {
+ real r=2pi*abs(z);
+ return r != 0 ? sin(r)/r : 1;
+}
+
+render render=render(compression=Low,merge=true);
+
+draw(lift(sinc,contour(sinc,(-2,-2),(2,2),new real[] {0})),red);
+draw(surface(sinc,(-2,-2),(2,2),Spline),lightgray,render);
+
+draw(scale3(2*sqrt(2))*unitdisk,paleyellow+opacity(0.25),nolight,render);
+draw(scale3(2*sqrt(2))*unitcircle3,red,render);
+
+xaxis3("$x$",Bounds,InTicks);
+yaxis3("$y$",Bounds,InTicks(beginlabel=false));
+zaxis3("$z$",Bounds,InTicks);