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 Apr 25 reviewed Leave Open About intersection of compact sets in non- metric spaces Apr 25 reviewed Leave Open Function in $L^2(\mathbb R^n)$ Apr 23 awarded Nice Answer Apr 22 reviewed Close Why are all Laplace transforms decay functions? What if $F(s)$ wasn't? Apr 22 reviewed Looks OK Estimation for points in a neighbourhood of a root of a polynomial Apr 22 reviewed Close Is it possible in a rectangle or a cuboid the length be lesser than the width? Apr 22 reviewed Looks OK What are some good books on algebraic inequalities? Apr 22 reviewed Looks OK Proof question about infinite series Apr 21 reviewed Close Homeomorphisms and Deformations Apr 21 reviewed Looks OK What is the best trigonometry book available free? Apr 20 reviewed Close help with matlab code Apr 19 revised Why does the power series of $x + x^2 + x^3 …$ not equal to $x/(1-x)$ when x is larger than 1? edited body Apr 19 comment Why does the power series of $x + x^2 + x^3 …$ not equal to $x/(1-x)$ when x is larger than 1? done, hardmath. Apr 19 comment Why does the power series of $x + x^2 + x^3 …$ not equal to $x/(1-x)$ when x is larger than 1? NB: I said only .... if", not "if;" That is a precise mathematical language. Apr 19 comment Probability of two IID random variables Both densities are the same; $f_X = f_y$. Put them both to some common function $f$. Apr 19 answered Why does the power series of $x + x^2 + x^3 …$ not equal to $x/(1-x)$ when x is larger than 1? Apr 19 answered Exponential generating function - what happens when there is a leftover term? Apr 19 answered Probability of two IID random variables Apr 16 answered vProve that the $\phi's$ form a basis for $V^*$ Mar 19 answered Identity theorem - entire function