On 15.10.2011, at 9:21PM, Hugo Gagnon wrote: > I need to print individual elements of a float64 array to a text file. > However in the file I only get 12 significant digits, the same as with: > >>>> a = np.zeros(3) >>>> a.fill(1./3) >>>> print a[0] > 0.333333333333 >>>> len(str(a[0])) - 2 > 12 > > whereas > >>>> len(repr(a[0])) - 2 > 17 > > which makes more sense since I am expecting at least 15 significant > digits… > > So how can I print a np.float64 with at least 15 significant digits > (without repr!)?
You mean like >>> '%.15e' % (1./3) '3.333333333333333e-01' ? If you are using e.g. savetxt to print to the file, you can specify the format the same way (actually the default for savetxt is already "%.18e", which should satisfy your demands). HTH, Derek _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org http://mail.scipy.org/mailman/listinfo/numpy-discussion