doing arithmetic upto two significant figures in Python?
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Published on 2010-05-04T00:03:27Z
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I have two floats in Python that I'd like to subtract, i.e.
v1 = float(value1) v2 = float(value2) diff = v1 - v2
I want "diff" to be computed upto two significant figures, that is compute it using %.2f of v1 and %.2f of v2. How can I do this? I know how to print v1 and v2 up to two decimals, but not how to do arithmetic like that.
thanks.
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