How can I force division to be floating point? Division keeps rounding down to 0
I have two integer values a and b , but I need their ratio in floating point. I know that a<b and I want to calculate a/b , so if I use integer division I'll always get 0 with a remainder of a .
How can I force c to be a floating point number in Python in the following?
c = a / b
>>> from __future__ import division
>>> a = 4
>>> b = 6
>>> c = a / b
>>> c
0.66666666666666663
You can cast to float by doing c = a / float(b) . If the numerator or denominator is a float, then the result will be also.
A caveat: as commenters have pointed out, this won't work if b might be something other than an integer or floating-point number (or a string representing one). If you might be dealing with other types (such as complex numbers) you'll need to either check for those or use a different method.
c = a / (b * 1.0)
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