-----Original Message-----
From: Ian Witham <[EMAIL PROTECTED]>
Sent: Sep 18, 2007 11:39 PM
To: Christopher Spears <[EMAIL PROTECTED]>
Cc: tutor@python.org
Subject: Re: [Tutor] sales tax
As Michael points out, you need to explicitly use the round function, as the float formatting merely truncates anything after the second decimal place.
I ran across a similar problem with the int() fuction early on. Anything after the decimal point is truncated, not rounded, leading to behavior I was not expecting.
For example:
int(-1.5) == -1
int(-.5) == 0
int(.5) == 0
int(1.5) == 1
Ian
***********************************
Ian,
You may well be aware of this already, but just in case...
The behavior of the int function is not what I expected either. I was expecting something like the greatest integer function from mathematics.
The floor() function of the math module has the behavior I expected.
Ken
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