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I discovered this when my students were creating a fraction class. 7/4 = 1 however -7/4 = -2 It seems to me the second result should be -1 It appears it is using the floor function but it isn't what my students wanted nor can I think of when anyone would want this result. Anyone know why? Thanks for any help Terry S - firstname.lastname@example.org
That is what floor division does, it reduces the value to the next lowest whole number. If you want to separate the whole number and fractional part, use math.modf:
from __future__ import division import math print math.modf(25/12) --> (0.08333, 2.0) print math.modf(-25/12) --> (-0.08333, -2.0) #to just print the whole number as an int: print int(math.modf(25/12))
Please see the Python Programming FAQ, question 1.3.2, for an explanation.