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python - What is inf and nan? - Stack Overflow inf is infinity - a value that is greater than any other value -inf is therefore smaller than any other value nan stands for Not A Number, and this is not equal to 0 Although positive and negative infinity can be said to be symmetric about 0, the same can be said for any value n, meaning that the result of adding the two yields nan This idea is discussed in this math se question Because
What is the point of float(inf) in Python? - Stack Overflow Just wondering over here, what is the point of having a variable store an infinite value in a program? Is there any actual use and is there any case where it would be preferable to use foo = float(
What is infinity divided by infinity? - Mathematics Stack Exchange I know that $\\infty \\infty$ is not generally defined However, if we have 2 equal infinities divided by each other, would it be 1? if we have an infinity divided by another half-as-big infinity, for
supremum and infimum - What does the notation inf {. . . } mean . . . This answer is a bit like Q “what does etc mean” being answered with “etc means et cetera ” I e factually correct but not really what the OP was seeking If the OP knew what infimum was they would know what inf meant
difference between np. inf and float (Inf) - Stack Overflow Is there some difference between NumPy np inf and float ('Inf')? float ('Inf') == np inf returns True, so it seems they are interchangeable, thus I was wondering why NumPy has defined its own "inf"
Replace all inf, -inf values with NaN in a pandas dataframe I have a large dataframe with inf, -inf values in different columns I want to replace all inf, -inf values with NaN I can do so column by column So this works: df['column name'] = df['column name']
Proof that $\inf A = -\sup (-A)$ - Mathematics Stack Exchange Prove that $\inf {A}=−\sup { (-A)}$ I think that the purpose of this question is to show you why it is not required to include the existence of infimum into the Axiom of Completeness