EuYu

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15,143 reputation

21340

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Mathematical Physics Major at the University of Waterloo

summary answers questions tags badges favorites 1 bounties reputation activity

454 Answers

votes activity newest

32	Is memory unimportant in doing mathematics?
31	7 Drinks - 7 Flavors - Infinite variety?
24	How do I understand $e^i$ which is so common?
16	How do I prove $(1 + \frac{1}{n})^n < n$ by mathematical induction?
14	Is there another representation for $x^x$

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15,143 Reputation

+40	Combinatorial proof of a Stirling number identity.
+10	Linear Independent Rows vs. Columns
+10	Prove that if $G$ is a tree with maximum degree of vertices $\Delta$, and $k$ $\leq \Delta$, then G has at least $k$ leaves
+10	Inverse matrix's eigenvalue?

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45 Questions

votes activity newest

13	Combinatorial proof of a Stirling number identity.
11	$e$ as the limit of a sequence
9	Cyclic numbers are characterized by the reciprocals of full reptend primes?
7	Minimal polynomial and invariant subspaces.
5	Proof that gradient is orthogonal to level set

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145 Tags

332 linear-algebra × 153	66 algebra-precalculus × 21
146 homework × 83	61 combinatorics × 29
135 matrices × 56	59 elementary-number-theory × 33
98 graph-theory × 45	48 geometry × 30
74 calculus × 41	43 determinant × 16

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3 Accounts

$Mathematics Stack Exchange$	Mathematics	15,143 rep	21340
	Physics	162 rep	16
	Area 51	101 rep	2

38 Badges

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Nice Question × 2	Yearling × 2
Constituent × 2	matrices
Excavator	Nice Answer × 7
Caucus × 2	Good Answer × 2
Generalist	Enlightened × 3

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1 Active bounty

active offered earned

+150	Combinatorial proof of a Stirling number identity.

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1,579 Votes Cast

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