On Jul 31, 11:17 pm, "Dr. Phillip M. Feldman" <pfeld...@verizon.net> wrote: > I'd like to be able to convert a float to a string representation in which > the number is rounded to a specified number of digits. If num2str is a > hypothetical function that does this, then num2str(pi,3) would be '3.142' > (not '3.141').
Python's string formatting does exactly this. Python 2.6.2 (r262:71600, Jul 8 2009, 09:56:31) [GCC 4.0.1 (Apple Inc. build 5490)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> num2str = '{0:.{1}f}'.format >>> num2str(3.14159, 3) '3.142' (In Python 3.1, num2str = '{:.{}f}'.format is enough.) Mark -- http://mail.python.org/mailman/listinfo/python-list