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You are here		lispy.wordpress.com Programming is too often a substitute for mathematics... \| Learning Lisp
\|	\|	emilygorcenski.com Emily F. Gorcenski	3.2 parsecs away Travel
\|	\|	I recently re-solved Project Euler Problem 1 on Twitch. Here's the math behind it.	3.2 parsecs away Travel
\|	\|	mikespivey.wordpress.com No Integer Solutions to a Mordell Equation \| A Narrow Margin	3.4 parsecs away Travel
\|	\|	Equations of the form $latex x^3 = y^2 + k$ are called Mordell equations. In this post we're going to prove that the equation $latex x^3 = y^2 -7$ has no integer solutions, using (with one exception) nothing more complicated than congruences. Theorem: There are no integer solutions to the equation $latex x^3 = y^2...	3.4 parsecs away Travel
\|	\|	jiggerwit.wordpress.com Babylonian Square Root of 2 in One Shot \| Jigger Wit	3.7 parsecs away Travel
\|	\|	YBC 7289 Introduction (A pdf version of this post appears at the end of this post.) We propose a one-shot calculation of ?2 using Babylonian mathematics. An Old-Babylonian (OB) tablet YBC 7289 (from around 1800 B.C. to 1600 B.C.) contains the approximation B = 1 + 24/60 + 51/602 + 10/603 = 30547/21600 for ?2....	3.7 parsecs away Travel
\|	\|	theroadlesspaved.com A Tree Hugger's Guide to Touchy-Feely or Don't Mind the Rough Spots - The Road Less Paved	20.1 parsecs away Travel
\|		Weekly Photo Challenge: Texture	20.1 parsecs away Travel