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davidlowryduda ♦

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81,136

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244/200 answers

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626 posts edited

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Answers (1,873)

Votes Activity Newest

153	Why is the inverse of a sum of matrices not the sum of their inverses?
102	What are the numbers before and after the decimal point referred to in mathematics?
97	Why is it hard to prove whether $\pi+e$ is an irrational number?
84	The expected payoff of a dice game
68	Is it unheard of to say that you like math but hate proofs?

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Reputation (81,136)

+25	Express $169$ as the sum of $1,2,3,4,5$ non-zero squares
+10	Using Perron's formula for asymptotic behaviors
+10	What is difference between a ring and a field?
+10	Using the Brun Sieve to show very weak approximation to twin prime conjecture

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Questions (30)

Votes Activity Newest

33	Using the Brun Sieve to show very weak approximation to twin prime conjecture
17	closed form of $\sum \frac{1}{z^3 - n^3}$
15	$\frac{16}{27} \left( \frac a{b+c} + \frac b{a+c} +\frac c{a+b} \right) ^3 + \left( \frac{abc}{(a+b)(b+c)(a+c)}\right)^{\frac{1}{3}} \geq \frac52$
15	Is there a 'far' irrational number?
14	Classifying Unital Commutative Rings of Order $p^2$

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Tags (405)

1k calculus × 348	435 linear-algebra × 95
906 number-theory × 255	431 soft-question × 36
658 elementary-number-theory × 190	394 integration × 125
494 real-analysis × 177	359 abstract-algebra × 102
471 sequences-and-series × 137	347 prime-numbers × 66

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Bookmarks (688)

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793	How to study math to really understand it and have a healthy lifestyle with free time? [closed]
751	Different methods to compute $\sum\limits_{k=1}^\infty \frac{1}{k^2}$ (Basel problem)
470	Integral $\int_{-1}^1\frac1x\sqrt{\frac{1+x}{1-x}}\ln\left(\frac{2\,x^2+2\,x+1}{2\,x^2-2\,x+1}\right) \mathrm dx$
434	Best Sets of Lecture Notes and Articles
321	A challenge by R. P. Feynman: give counter-intuitive theorems that can be translated into everyday language

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	Mathematics♦	81,136 rep	8 gold badges140 silver badges280 bronze badges
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Good Answer × 27	Nice Answer × 126
Necromancer × 17	Constituent × 7
Revival × 53	Caucus × 7

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Votes cast (14,493)

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