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Jan
19
awarded  Yearling
Nov
28
awarded  Informed
Nov
26
answered Proving a function is bounded given that the function is uniform continuous over a bounded, closed domain
Nov
24
revised Lagrange Multipliers- Two constraints (Minimum)
added 197 characters in body
Nov
24
answered Lagrange Multipliers- Two constraints (Minimum)
Nov
9
answered Annuity Future Value Factor
Nov
9
revised Annuity Future Value Factor
Improved Formatting
Nov
9
suggested suggested edit on Annuity Future Value Factor
Nov
9
comment Solving $\cos x=x$
@Sawarnik I thought that you would, but wanted to make sure. I don't really think that you could find an exact, closed-form solution. An analytical approach will, as you mentioned, likely yield an infinite sum.
Nov
9
comment Solving $\cos x=x$
You are looking for an exact solution correct (i.e. no numerical approximations)?
Nov
9
answered Non-negative, real matrix $\Rightarrow$ non-negative, real eigenvalues?
Nov
8
awarded  Critic
Nov
7
awarded  Commentator
Nov
7
comment Homogenous equation with only one solution
A homogeneous equation always has the trivial solution. I believe he's asking if there are any systems with 2 equations in 3 unknowns that have only the trivial solution. I don't think there are any.
Nov
7
comment Homogenous equation with only one solution
No, because when you row reduce to solve the system you'll have a free variable.
Nov
5
comment top journals in analysis
I know that they have journals that undergrads publish in, but I don't know anything about them to speak of. You could google undergraduate math journals or something similar. I would study some grad level texts and try to work through some articles that really interest you while referring back to the texts and/or the internet for help in understanding.
Nov
5
comment Logical representation of a prime number
@Daniel If you let n=3 and k=6, then the statement would be false and thus 6 is not prime.
Nov
4
comment In PDF, why are these two interval notations the same?
If you have a continuous distribution think about what $P(10)$ is.
Nov
4
answered Subset of a countable set is itself countable
Nov
4
revised top journals in analysis
added 357 characters in body