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davidlowryduda ♦

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linear-algebra

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Answers (1,860)

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145	Why is the inverse of a sum of matrices not the sum of their inverses?
89	Why is it hard to prove whether $\pi+e$ is an irrational number?
88	What are the numbers before and after the decimal point referred to in mathematics?
72	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 (78,559)

+10	Dirichlet eta function and the Riemann hypothesis
+10	Evaluating the integral $\int_0^\infty \frac{\sin x} x \,\mathrm dx = \frac \pi 2$?
-2	Open mathematical questions for which we really, really have no idea what the answer is
+10	Classifying Unital Commutative Rings of Order $p^2$

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Questions (30)

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29	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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1k calculus × 346	419 soft-question × 36
884 number-theory × 253	406 linear-algebra × 96
628 elementary-number-theory × 187	377 integration × 122
488 real-analysis × 177	343 abstract-algebra × 101
459 sequences-and-series × 136	340 prime-numbers × 65

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	Mathematics♦	78,559 rep	7 gold badges128 silver badges270 bronze badges
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	Philosophy	1,670 rep	2 gold badges15 silver badges26 bronze badges

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linear-algebra	Necromancer × 15
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Nice Answer × 123	Yearling × 8
Guru × 6	Popular Question × 5

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