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Apr
2
answered Shouldn't the induction hypothesis be taken only on $n?$
Apr
2
comment Notation for near optimal solution
@MPW hilarious :)
Apr
2
comment Notation for near optimal solution
Welcome to Math.SE, thanks for your question. Hope you stay around and contribute to the site. I haven't seen a standard notation for such things.
Apr
2
comment Can a transcendental number be an infimum of a set of rationals?
@MPW thank you, dumb typo, sorry
Apr
2
comment Can a transcendental number be an infimum of a set of rationals?
@Lubin see the edit, you just need to negate it.
Apr
2
answered Can a transcendental number be an infimum of a set of rationals?
Apr
1
comment How to compute the nth power of a matrix
As is clear from the above argument, it works as long as P is invertible, it doesn't rely on P being orthogonal
Apr
1
comment How to compute the nth power of a matrix
@RyanMcGaha Ryan, see the last update to the answer, I posted my numbers, do we agree?
Apr
1
revised How to compute the nth power of a matrix
added 293 characters in body
Apr
1
comment How to compute the nth power of a matrix
@RecklessReckoner Typo, sorry, $P = \pmatrix{1 & -1\\-1 &2}$ and $P^{-1}$ is correct.
Apr
1
comment linear differential equation problem
@jesse fixed type
Apr
1
revised linear differential equation problem
edited body
Apr
1
comment How to compute the nth power of a matrix
@RyanMcGaha it sounds like the order is wrong, shouldn't you have $P = \pmatrix{1 & -1 \\1 & 2}$ with $P^{-1} = \pmatrix{2 & 1 \\1 & 1}$?
Apr
1
comment How to compute the nth power of a matrix
@RyanMcGaha what are you using for $D$ and $P$?
Apr
1
answered How to compute the nth power of a matrix
Apr
1
revised What's the first fundamental form of a regular surface in complex coordinates and how to get it?
added 6 characters in body
Apr
1
answered linear differential equation problem
Apr
1
comment linear differential equation problem
What are your thoughts about how to approach this problem? Please write some form of an attempt to solve it, and we will be glad to comment and give more hints.
Apr
1
revised linear differential equation problem
latex
Apr
1
answered Hilbert space $L^{2}(0,\pi)$