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bio website molinajosue.blogspot.com
location Houston, TX
age 25
visits member for 2 years, 10 months
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One Thousand Birds


Mar
16
revised Pointwise Convergence on an Infinite Intersection of Function Images
added 218 characters in body
Mar
16
comment Pointwise Convergence on an Infinite Intersection of Function Images
@PatrickDaSilva, I was thinking the same, and I was also thinking that the $f_n$ may need to be differentiable (for reasons that I have yet to fully go over). By the way, I take off my hat to you for checking M.SE on your phone!
Mar
16
asked Pointwise Convergence on an Infinite Intersection of Function Images
Mar
16
awarded  Enthusiast
Mar
15
comment Prime Number Generator: $n\cdot2^n - 1$?
I agree, and I apologize for not having done that to begin with. :/ I guess I just have this thing for programming where, in my excitement, I do it blindly and without much prior thought. I checked its validity by hand for the first two cases or so, and upon seeing that it worked, I jumped straight into the coding... had I done just one more number!
Mar
15
awarded  Suffrage
Mar
15
revised Prime Number Generator: $n\cdot2^n - 1$?
edited title
Mar
14
comment Prime Number Generator: $n\cdot2^n - 1$?
That's interesting! I just found out that $n\cdot2^n+1$ are called Cullen numbers. o.o
Mar
14
accepted Prime Number Generator: $n\cdot2^n - 1$?
Mar
14
comment Prime Number Generator: $n\cdot2^n - 1$?
That's interesting. I must've messed up my programming. Thanks for the counterexample.
Mar
14
asked Prime Number Generator: $n\cdot2^n - 1$?
Mar
14
comment variation of parameters (constants)
Do you mean $xy(x)'+y(x)=x^2$?
Mar
14
comment What exactly do we mean when say “linear” combination?
No because $+$ is a linear operator, thus a linear combination.
Mar
14
accepted Is $2^p-1$ a pseudoprime to the base $2$?
Mar
14
asked Is $2^p-1$ a pseudoprime to the base $2$?
Mar
14
accepted Uniform Convergence of a Nonlinear Sequence of Functions #2
Mar
14
comment Uniform Convergence of an Exponential Sequence of Functions
Thank you very much! But is it really possible to show that rigorously? The first thing that came to my mind was to rewrite the sum using sigma notation, apply the triangle inequality to the expressions in $n$ and somehow manage to show that they can be made arbitrarily smaller than any chosen $\epsilon$ for a sufficiently large $n$.
Mar
14
comment Uniform Convergence of an Exponential Sequence of Functions
That inequality doesn't hold for $x\in\left(-1,0\right)$, though.
Mar
14
accepted Uniform Convergence of an Exponential Sequence of Functions
Mar
14
comment Uniform Convergence of an Exponential Sequence of Functions
Do you guys know where I can find documentation regarding this particular Taylor expansion? I would like to know how you reached that equality.