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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /graphics/asymptote/examples/unitcircle.asy
Initial commit
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diff --git a/graphics/asymptote/examples/unitcircle.asy b/graphics/asymptote/examples/unitcircle.asy
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+size(0,150);
+
+pair z0=0;
+pair z1=1;
+real theta=30;
+pair z=dir(theta);
+
+draw(circle(z0,1));
+filldraw(z0--arc(z0,1,0,theta)--cycle,lightgrey);
+dot(z0);
+dot(Label,z1);
+dot("$(x,y)=(\cos\theta,\sin\theta)$",z);
+arrow("area $\frac{\theta}{2}$",dir(0.5*theta),2E);
+draw("$\theta$",arc(z0,0.7,0,theta),LeftSide,Arrow,PenMargin);