257 reputation
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age 30
visits member for 3 years, 6 months
seen 10 hours ago

Aug
15
comment Is there a name for the function $\max(x, 0)$?
I suppose that's interesting, but it's not at all what the question is asking.
Jul
22
revised How to explain what is wrong in this?
I had a typo in part of my original example, and the rest of the example was edited to be consistent with that typo; however, this makes the math wrong. Fixing it.
Nov
8
comment What are some examples of notation that really improved mathematics?
I enjoy the comment that these "belong in this list"... ∈
Aug
15
comment Should I put number combinations like 1111111 onto my lottery ticket?
What the Lord said. Also, he said it "seems" less likely. That means he recognizes that it shouldn't be so, but it seems like it is, and so he wants to understand why that is
Jul
10
comment “IFF” (if and only if) vs. “TFAE” (the following are equivalent)
Perhaps "exactly equivalent" has some technical meaning that I'm not aware of, but to me it implies "equivalent in every way", which I would deny. They are logically equivalent, but conceptually different.
May
14
awarded  Commentator
May
14
comment How to find the limit of this function
@LimitsMate, it's not so much a matter of "throwing away" the constant factor with disregard. This can be done here because clearly $\sqrt{n^4+100}>\sqrt{n^4}$
May
13
awarded  Caucus
May
9
suggested suggested edit on Summation of logs
May
8
comment Summation of logs
I'm not talking about computational complexity--you can read about numerical stability here: en.wikipedia.org/wiki/Numerical_stability
May
8
comment Summation of logs
@Inceptio, what you suggest is a very numerically unstable approach
May
8
comment Summation of logs
Perhaps instead of calculating $N!$ and then taking the $log$, you could in one step calculate the log-gamma function, i.e., $ln Γ (N+1)$. You didn't mention what language you are coding in; this would be very easy in, say, Mathematica.
Mar
20
comment Is value of $\pi = 4$?
N.S. isn't talking about numerical analysis; he's referring to en.wikipedia.org/wiki/Mathematical_analysis, which provides the foundations of calculus.
Aug
27
revised Functions: Linear Function: $f(x) = 3x + 5.$
formatting
Aug
27
suggested suggested edit on Functions: Linear Function: $f(x) = 3x + 5.$
Aug
22
awarded  Nice Answer
Aug
22
awarded  Yearling
Aug
13
revised Complete course of self-study
fixed grammar
Aug
13
suggested suggested edit on Complete course of self-study
Jul
1
awarded  Critic