Question

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Why doesn't this division work in python?

A simple problem I’m having (I Think) The following statement:

    print (4950*8)/(((4950*8)/10000000*(1538/1460))+0.1/1000)/1000

Gives me 396000.0.

But on a Calculator I get 9270.614192621.

If someone could point out what I’m doing wrong in the code that would be great.

Thanks.

Answer 1

Old versions of Python use truncated integer division for int operands.

Try from __future__ import division (see http://www.python.org/dev/peps/pep-0238/ for the full story) or coerce int operands to float (e.g. with float, or by appending .0 to literals).