Joseph Quinsey
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 Mar25 reviewed No Action Needed $g(x) = 1/(1+x^2)$ is continuous everywhere epsilon delta approach Mar18 reviewed Reviewed a question about division ring and injective modules Mar18 reviewed Reviewed Hamming distance of binary strings Mar16 revised Trouble understanding purpose of second $($ in $q(x_k(x_{k-1}^i,z_k)$ Expanded reference Mar16 suggested approved edit on Trouble understanding purpose of second $($ in $q(x_k(x_{k-1}^i,z_k)$ Mar16 revised How to obtain the pdf of this transformation of normal random variables? Shortened title, quoted original problem Mar16 suggested approved edit on How to obtain the pdf of this transformation of normal random variables? Mar16 reviewed Reviewed How to obtain the pdf of this transformation of normal random variables? Mar16 reviewed Reviewed Deriving a Formula From a Simple Artificial Language Mar13 comment Is there any criterion when an interger solution of the equation $ax^2-by^2=c$ $(a,b,c\in\mathbb{N})$ exists? See, for example, mathworld.wolfram.com/DiophantineEquation2ndPowers.html Feb26 revised Is there any situation in which a geodesic maximize the path length between two points? Added image Feb26 reviewed Reviewed Is there any situation in which a geodesic maximize the path length between two points? Feb26 suggested approved edit on Is there any situation in which a geodesic maximize the path length between two points? Feb26 reviewed Reviewed Find all integers $x$, $y$, and $z$ such that $\frac{1}{x} + \frac{1}{y} = \frac{1}{z}$ Feb5 reviewed No Action Needed how to work out a total % for 2 components worth 60% and 40% Jan19 revised What's your favorite proof accessible to a general audience? Misspelled "Gauss" Jan19 suggested approved edit on What's your favorite proof accessible to a general audience? Dec19 awarded Constituent Dec15 reviewed No Action Needed $A$ be a $10*10$ matrix with complex entries s.t. all eigenvalues are non negative real and at least one eigenvalue is positive. Dec8 awarded Caucus