John Gietzen

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516 reputation

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bio	website	lanlordz.net
	location	Wichita, KS
	age	26
visits	member for	1 year, 10 months
	seen	Jan 19 at 17:59
stats	profile views	117

I'm a father, a lover, a programmer and a guitarist, in that order.

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4 Questions

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17	How can you prove that the square root of two is irrational?
11	Is there a general formula for solving 4th degree equations?
7	Is there a closed-form equation for $n!$? If not, why not?
5	What is the most efficient way to determine if a matrix is invertible?

516 Reputation

+28	How can you prove that the square root of two is irrational?
+40	Is there a general formula for solving 4th degree equations?
+10	What is the most efficient way to determine if a matrix is invertible?
+5	Is there a closed-form equation for $n!$? If not, why not?

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3 Answers

votes activity newest

11	How are we able to calculate specific numbers in the Fibonacci Sequence?
6	Can you explain what a real number is (also rational, decimal, integer, natural, cardinal, ordinal…)
-3	Does .99999… = 1?

11 Tags

11 combinatorics × 2	0 algebra-precalculus × 2
11 linear-algebra × 2	0 algorithms
11 generating-functions	0 decimal-expansion
6 definition	0 irrational-numbers
6 terminology	0 matrices

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50 Votes Cast

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50	up		11	question
0	down		39	answer

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