[Tutor] Floating Confusion

wormwood_3 wormwood_3 at yahoo.com
Thu Aug 23 02:08:01 CEST 2007

Dear Tutors,

Reading through Wesley's delightful Core Python Programming, I came across something I have not been able to grasp yet. Some introductory code:

>>> 1
>>> 1.1
>>> print 1
>>> print 1.1


The second case is, of course, what is throwing me. By having a decimal point, "1.1" is a float type, and apparently it cannot be represented by binary floating point numbers accurately. I must admit that I do not understand why this is the case. Would anyone be able to enlighten me?


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