Python: Change precision of a number

Neruocomp · 02-02-2006, 08:25 PM

In a program I've made I'm computing the percent error and since the numbers used are float, they are comming out too long. What is the best way of changing the precision so that I get 0.72 and not .723411340...etc.

I'm using the enthought edition of python 2.3.5

Can you help me out?

bulliver · 02-03-2006, 12:57 AM

Use string formatting if you are just printing the numbers:

Code:

>>> print "%.2f" % (0.723411)
0.72

See the docs for specifics:
http://docs.python.org/lib/typesseq-strings.html