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+import graph;
+
+size(30,30,IgnoreAspect);
+
+real f(real t) {return t < 0 ? -1/t : -0.5/t;}
+
+picture logo(pair s=0, pen q)
+{
+ picture pic;
+ pen p=linewidth(3)+q;
+ real a=-0.5;
+ real b=1;
+ real eps=0.1;
+ draw(pic,shift((eps,-f(a)))*graph(f,a,-eps),p);
+ real c=0.5*a;
+ pair z=(0,f(c)-f(a));
+ draw(pic,z+c+eps--z,p);
+ yaxis(pic,p);
+ return shift(s)*pic;
+}
+
+add(logo(red));