Added quickrefs for dictionaries, getting started with arrays, for, matrices, other plots, savefig, using python modules.
from scipy import linspace, pi, sin
from pylab import plot, legend, show, title
from pylab import xlabel, ylabel
x = linspace(-2*pi,2*pi,100)
plot(x,sin(x))
legend(['sin(x)'])
title('Sine plot')
xlabel('x')
ylabel('sin(x)')
show()