Can I make plot(f(x)) figures smaller?

edit

You should have a look at the documentation of plot with

sage: plot?

There are plenty of options. In particular, to obtain a small picture you have the option figsize as in

sage: plot(sin(x), (x,-pi,pi), figsize=4)

or

sage: P = plot(sin(x), (x,-pi,pi))
sage: P.show(figsize=4)

The default value for figsize seems to be 8. With 4 you obtain quite a small picture. Note that you can also set this parameter to a pair (width,height).

There is a poorly-documented option for modifying this globally as well.

sage.plot.graphics.Graphics.SHOW_OPTIONS

is a dictionary that has a lot of options. So for instance, this would work to make a truly tiny graph.

sage.plot.graphics.Graphics.SHOW_OPTIONS['figsize']=1
plot(x,(x,-1,1))

However, one shouldn't abuse it - it's too easy to think there should be one default! We try for one that works in a wide variety of cases, but I agree that the default is often too big for certain applications.