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Anixx
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68
General formula for solving quartic (degree $4$) equations
Feb 5, 2015
28
Has anybody ever considered "full derivative"?
Mar 25, 2015
20
Evaluate definite integral $\int_{-1}^1 \exp(1/(x^2-1)) \, dx$
May 14, 2012
20
Is it wrong to tell children that $1/0 =$ NaN is incorrect, and should be $∞$?
May 13, 2012
17
Is this similarity just a coincidence?
Nov 17, 2014
16
What are the consequences if Axiom of Infinity is negated?
Feb 9, 2012
16
Is there a name for the class of functions which are infinitely integrable in elementary functions?
Mar 5, 2014
15
On the functional square root of $x^2+1$
Feb 19, 2012
15
How to calculate $f(x)$ in $f(f(x)) = e^x$?
Dec 9, 2012
14
How this operation is called?
Nov 3, 2010

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What should be the attitude and response to the following phenomenon?
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Regularization tag

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128
Is the analysis as taught in universities in fact the analysis of definable numbers?
103
Is it possible for information to be transmitted faster than light by using a rigid pole?
90
How to solve $f(f(x)) = \cos(x)$?
79
What are the lesser known Russian cases?
75
Is there any deep philosophy or intuition behind the similarity between $\pi/4$ and $e^{-\gamma}$?