precision(self, s='')
Can set either integer precision or a format string.
If numpy has been imported and precision is an int, numpy display precision will also be set, via numpy.set_printoptions
.
If no argument is given, defaults will be restored.
Set floating point precision for pretty printing.
In [1]: from math import pi
In [2]: %precision 3 Out[2]: u'%.3f'
In [3]: pi Out[3]: 3.142
In [4]: %precision %i Out[4]: u'%i'
In [5]: pi Out[5]: 3
In [6]: %precision %e Out[6]: u'%e'
In [7]: pi**10 Out[7]: 9.364805e+04
In [8]: %precision Out[8]: u'%r'
See :In [9]: pi**10 Out[9]: 93648.047476082982
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