You can either set your axes.formatter.limits rc setting to something like 4,
or you can make your axes smaller in the figure, like
axes([0.25,0.125,0.7,0.85])

Thanks for this. I tried the first one (I can't make the figure smaller ;)), but I got this result :

  File "images.py", line 14, in <module>
    pl.rcParams['axes.formatter.limits']=4
  File "/home/brucher/local/lib/python2.5/site-packages/matplotlib/__init__.py", line 552, in __setitem__
    cval = self.validate[key](val)
  File "/home/brucher/local/lib/python2.5/site-packages/matplotlib/rcsetup.py", line 119, in __call__
    assert type(s) in (list,tuple)

with :
>>> import pylab as pl
>>> pl.rcParams['axes.formatter.limits']=4

last stable Matplotlib

Matthieu
--
French PhD student
Website : http://matthieu-brucher.developpez.com/
Blogs : http://matt.eifelle.com and http://blog.developpez.com/?blog=92
LinkedIn : http://www.linkedin.com/in/matthieubrucher