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on 13 Oct 2021
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t=linspace(-pi,pi,350)
t = 1×350
-3.1416 -3.1236 -3.1056 -3.0876 -3.0696 -3.0516 -3.0336 -3.0156 -2.9976 -2.9796 -2.9616 -2.9436 -2.9256 -2.9075 -2.8895 -2.8715 -2.8535 -2.8355 -2.8175 -2.7995 -2.7815 -2.7635 -2.7455 -2.7275 -2.7095 -2.6915 -2.6735 -2.6555 -2.6375 -2.6195
X=t.*sin(pi*.872*sin(t)./t)
X = 1×350
-0.0000 -0.0493 -0.0986 -0.1478 -0.1970 -0.2460 -0.2949 -0.3436 -0.3921 -0.4403 -0.4883 -0.5360 -0.5833 -0.6303 -0.6768 -0.7230 -0.7686 -0.8138 -0.8584 -0.9025 -0.9460 -0.9888 -1.0310 -1.0725 -1.1132 -1.1532 -1.1924 -1.2308 -1.2684 -1.3051
Y=-abs(t).*cos(pi*sin(t)./t)
Y = 1×350
-3.1416 -3.1231 -3.1035 -3.0829 -3.0613 -3.0385 -3.0147 -2.9898 -2.9637 -2.9366 -2.9083 -2.8789 -2.8484 -2.8167 -2.7840 -2.7501 -2.7151 -2.6790 -2.6418 -2.6035 -2.5642 -2.5238 -2.4823 -2.4398 -2.3964 -2.3519 -2.3065 -2.2601 -2.2129 -2.1648
fill(X,Y,'r')
axis square
axis off
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