This is a picture test.
一段 asymptote 代码(test.asy):
import graph;
size(200,0);
real f1(real x) { return x; }
real f2(real x) { return x^2; }
real f3(real x) { return x^3; }
guide f1 = graph(f1, 0, 1.5, operator..);
guide f2 = graph(f2, 0, 1.5, operator..);
guide f3 = graph(f3, 0, 1.5, operator..);
draw(f1, green);
draw(f2, red);
draw(f3, blue);
label(Label("$y=x$", EndPoint, E), f1);
label(Label("$y=x^2$", EndPoint, E), f2);
label(Label("$y=x^3$", EndPoint, E), f3);
xaxis("$x$", Arrow);
yaxis("$y$", Arrow);
运行命令 asy -f svg test.asy
,输出 svg 格式的图片为: