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# 26 Revisions

 Mar 10 revised Proving $(2n+1) + (2n+3) + \cdots + (4n-1) = 3n^{2}$ for all positive integers $n$ removed ">" from formatted text block Sep 7 revised What is the explanation for the elements of this set? edited body Sep 7 revised What is the explanation for the elements of this set? added 103 characters in body Aug 19 revised What are the explanations for certain steps in these proofs for the irrationality/rationality of certain numbers? added 51 characters in body May 15 revised What is the best way to show that no positive powers of this matrix will be the identity matrix? rolled back to a previous revision Apr 21 revised Why does $a_n = (1+\frac{2}{n})^{n}$ converge to $e^2$? deleted 1 characters in body Apr 17 revised How to show certain things related to scalar products removed unnecessary ">" caused by blockquote formatting Apr 17 revised How to show certain things related to scalar products added 143 characters in body Apr 17 revised How to show certain things related to scalar products added 2 characters in body Apr 17 revised How to show certain things related to scalar products added 6 characters in body; added 114 characters in body; added 1 characters in body Apr 16 revised How do you show this property of a differentiable function given information about the derivative? edited title Mar 30 revised Why does $a_n = (1+\frac{2}{n})^{n}$ converge to $e^2$? rolled back to a previous revision Feb 13 revised Why is the 'change-of-basis matrix' called such? added 2211 characters in body; deleted 10 characters in body; deleted 4 characters in body Feb 5 revised How many gallons of water is on earth to this day? deleted 37 characters in body Feb 1 revised “Find $f '(a)$” explaining in english added 23 characters in body Jan 25 revised Why is this tuple of vectors not a basis for $\mathbb{R}^{2}$? edited body; edited title Jan 12 revised Is Thomae's function Riemann integrable? edited tags Jan 5 revised Step functions and the characteristic function of rationals deleted 6 characters in body; added 8 characters in body Jan 4 revised Showing properties of discontinuous points of a strictly increasing function added (ii) Dec 20 revised Showing properties of discontinuous points of a strictly increasing function added 8 characters in body