

<<fig_cap="sin(x) function."; label="sin_fun"; fig_pos="ht">>=
using PyPlot
x = linspace(0, 2π, 200)
plot(x, sin(x))
@

<<echo=false; fig_cap="cos(x) function.">>=
plot(x, cos(x))
@

<<echo=false; label="cos2_fun">>=
plot(x, cos(2x))
@

<<term=true;fig_width=5>>=
x = linspace(0, 2π, 200)
plot(x, sin(x))
y = 20
plot(x, cos(x))
@

<<out_width="15cm">>=
x = randn(100, 100)
contourf(x)
@