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Hello! I'm using Mathematica 9.0.0.0 and I've come across following puzzling results:In[12]:= Log[8.62096/8.62096] Log[8.62097/8.62097] Log[8.62098/8.62098] Out[12]= 0. Out[13]= -1.11022*10^-16 Out[14]= 0.When I calculate logarithm...