Message322679
FTR, here "fixed point" refers to the output representation (a decimal string) rather than the input (a floating-point binary value). The output of %f gives a *fixed* number of places after the decimal point (6 by default).
Contrast with %e, which gives a floating-point output representation.
But yes, there are probably less confusing ways to word this. Did you have a particular alternative wording in mind?
Here's the behaviour of %f for different scale values: note that the output always has the same number of digits after the point, but the number of significant digits varies.
>>> "%f" % math.pi
'3.141593'
>>> "%f" % (100.0 * math.pi)
'314.159265'
>>> "%f" % (0.01 * math.pi)
'0.031416'
And here's %e. Now it's the other way around: the number of significant digits stays the same, but the exponent changes to reflect the magnitude.
>>> "%e" % math.pi
'3.141593e+00'
>>> "%e" % (100 * math.pi)
'3.141593e+02'
>>> "%e" % (0.01 * math.pi)
'3.141593e-02' |
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Date |
User |
Action |
Args |
2018-07-30 14:52:32 | mark.dickinson | set | recipients:
+ mark.dickinson, docs@python, MikeFoxtrot |
2018-07-30 14:52:32 | mark.dickinson | set | messageid: <1532962352.28.0.56676864532.issue34273@psf.upfronthosting.co.za> |
2018-07-30 14:52:32 | mark.dickinson | link | issue34273 messages |
2018-07-30 14:52:32 | mark.dickinson | create | |
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