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authorKarl Berry <karl@freefriends.org>2013-04-07 18:26:53 +0000
committerKarl Berry <karl@freefriends.org>2013-04-07 18:26:53 +0000
commitb04c2e1a42573e9735547702356c7b9a769a6855 (patch)
treec0753443f39500a062d7698fe6b94359c813f871 /Master/texmf-dist/doc/asymptote/examples/lowupint.asy
parentfb0bf13304a356f197bfc1add17f98c07e96f17b (diff)
texmf -> texmf-dist: doc
git-svn-id: svn://tug.org/texlive/trunk@29714 c570f23f-e606-0410-a88d-b1316a301751
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+import graph;
+
+real f(real x) {return x^3-x+2;}
+pair F(real x) {return (x,f(x));}
+
+void rectangle(real a, real b, real c, real h(real,real))
+{
+ real height=(a < c && c < b) ? f(c) : h(f(a),f(b));
+ pair p=(a,0), q=(b,height);
+ path g=box(p,q);
+ fill(g,lightgray);
+ draw(g);
+}
+
+void partition(real a, real b, real c, real h(real,real))
+{
+ rectangle(a,a+.4,c,h);
+ rectangle(a+.4,a+.6,c,h);
+ rectangle(a+.6,a+1.2,c,h);
+ rectangle(a+1.2,a+1.6,c,h);
+ rectangle(a+1.6,a+1.8,c,h);
+ rectangle(a+1.8,b,c,h);
+
+ draw((a,0)--(F(a)));
+ draw((b,0)--(F(b)));
+
+ draw(graph(f,a,b,operator ..),red);
+ draw((a,0)--(b,0));
+ labelx("$a$",a);
+ labelx("$b$",b);
+}