Asymptote is a vector graphics
language. It is part of most linux distributions. (sudo apt-get install asymptote).
It is motivated by MetaFont and Metapost. Here is how to use it from the command line:
Assume we have a file square.asy which has the content
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size(3cm);
draw(unitsquare);
label(" ,(0,0),SW);
label(" ,(1,0),SE);
label(" ,(1,1),NE);
label(" ,(0,1),NW);
fill(shift(4,0)*rotate(30)*P, yellow);
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then the following command
asy square.asy
produces an EPS file, which can be included into a Latex document.
Here is an other example on how to graph:
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size(10cm);
import graph;
real f(real x) {
return x*sin(10*1/(0.001+x^2));
}
draw(graph(f,-3,3,300),blue);
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Here is a fancy example from the documentation:
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size(600); real a=5; real b=12; real c=hypot(a,b);
transform ta=shift(c,c)*rotate(-aCos(a/c))*scale(a/c)*shift(-c);
transform tb=shift(0,c)*rotate(aCos(b/c))*scale(b/c);
picture Pythagorean(int n) {
picture pic;
fill(pic,scale(c)*unitsquare,1/(n+1)*red+n/(n+1)*green);
if(n == 0) return pic;
picture branch=Pythagorean(--n);
add(pic,ta*branch); add(pic,tb*branch);
return pic;
}
add(Pythagorean(12));
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