Le Saturday 28 June 2008 14:55:04 Dick Moores, vous avez écrit : > %.4g comes close to what I want, but no cigar. In the examples below, > the first 2 are not scientific notation form. > > >>> print "%.4g" % 5.09879870978 > > 5.099 > > >>> print "%.4g" % .0009874345 > > 0.0009874 > > >>> print "%.4g" % .000009878 > > 9.878e-006 > > >>> print "%.4g" % 187686876876238746 > > 1.877e+017 > > How can I print all numbers in scientific notation form, and > designate the number of significant digits?
%g automatically choose the more readable form. Use %e for that: >>>> '%e' % 1.0 '1.000000e+00' and to set the number of significant digits (it seems to only set the number of digits after the comma, so you have to subtract 1 from it) : >>> '%.3e' % 1.0 '1.000e+00' -- Cédric Lucantis _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
