float / rounding question
helen.m.flynn at gmail.com
Mon Feb 25 11:58:55 CET 2008
On Feb 25, 10:44 am, helen.m.fl... at gmail.com wrote:
> Hi I'm very much a beginner with Python.
> I want to write a function to convert celcius to fahrenheit like this
> def celciusToFahrenheit(tc):
> tf = (9/5)*tc+32
> return tf
> I want the answer correct to one decimal place, so
> celciusToFahrenheit(12) would return 53.6.
> Of course the function above returns 53.600000000000001.
> How do I format it correctly?
By the way, I tried this:
return '%2.1f' % tf but that returns a string instead of a number.
Any other suggestions?
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