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May
28
awarded  Popular Question
May
20
awarded  Nice Answer
Nov
28
awarded  Commentator
Nov
28
comment Singular value decomposition over finite fields?
You can still use an unordered field, you just need that the inner-product maps to non-negative reals.
Nov
28
answered Thorough Introduction to Singular Value Decomposition
Nov
28
answered A random walk matrix has eigenvalue 1 with multiplicty 1 - why?
Nov
20
comment Computing the maximum salary
This wouldn't work for 2 people would it?
Nov
20
comment Computing the maximum salary
I like this question, hehe, simple but interesting.
Nov
20
comment Infinite Ramsey theorem with infinitely many colours
Kristal, I may be missing something, but when you say countably finite isn't that redundant, I mean all finite sets are countable by definition no?
Nov
20
comment How to compute the rank of a matrix?
haha I think its fine to have a misleading title as long as its all fun and games.
Nov
19
answered Ways to Synthesize Topics in Linear Algebra
Nov
11
comment Math History Question about the exponential function
"entities must not be multiplied beyond necessity", thats all.
Nov
9
comment Math History Question about the exponential function
thanks for the answer, I suspect your reasoning is correct. Correct me if I am wrong but f continuous on isn't a sufficient condition. For example, take $f(x) = 1 \text{ for } x \in \mathbb{Q}$ and $f(x)=0 \text{ for } x \in \mathbb{R} \ setminus \mathbb{Q} $ then that method would imply f(x) is 1 everywhere, since f(x) is continuous on the rationals
Nov
9
awarded  Supporter
Nov
9
comment Math History Question about the exponential function
Ever hear of occam's razor Harald ? :P
Nov
9
asked Math History Question about the exponential function
Nov
6
awarded  Student
Nov
6
awarded  Editor
Nov
6
revised Generating-functions: is there a relationship between a generating function and the corresponding squared generating function
added 241 characters in body
Nov
5
asked Generating-functions: is there a relationship between a generating function and the corresponding squared generating function