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May
20
 revised Permutations of $[n]$ with $k$ peaks
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May
19
 revised Permutations of $[n]$ with $k$ peaks
deleted 7 characters in body
May
19
 revised Permutations of $[n]$ with $k$ peaks
improved the question, making it less vague.
May
17
 revised Permutations of $[n]$ with $k$ peaks
added 593 characters in body
May
17
 revised Permutations of $[n]$ with $k$ peaks
added 20 characters in body
May
17
 asked Permutations of $[n]$ with $k$ peaks
May
15
 asked Are Taylor series and power series the same “thing”?
May
14
 accepted Radius of convergence of the Bernoulli polynomial generating function power series.
May
14
 asked Radius of convergence of the Bernoulli polynomial generating function power series.
May
14
 comment What is the radius of convergence of a power series in two variables?
If $z$ and $w$ are real, then $|zw|<1$ would work ?
May
14
 comment What is the radius of convergence of a power series in two variables?
In your answer should $k$ run from $0$ to $j$, and not $\infty$?
May
14
 comment What is the radius of convergence of a power series in two variables?
What of I were to fix one of the variables? Then it would effectively become a power series in only one variable, right?
May
14
 comment What is the radius of convergence of a power series in two variables?
So only power series in a single variable have a radius of convergence in general. Ok, thanks.
May
14
 comment What is the radius of convergence of a power series in two variables?
What if the variables were only allowed to take real values?
May
14
 revised What is the radius of convergence of a power series in two variables?
added 10 characters in body
May
14
 asked What is the radius of convergence of a power series in two variables?
May
12
 awarded  Caucus
May
1
 revised Evaluate $\int_0^\tau \frac{t\sin(t z)}{z\cos(t z)-\sin(tz)}\text{d}t$
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May
1
 revised Evaluate $\int_0^\tau \frac{t\sin(t z)}{z\cos(t z)-\sin(tz)}\text{d}t$
added 109 characters in body
Apr
30
 asked Evaluate $\int_0^\tau \frac{t\sin(t z)}{z\cos(t z)-\sin(tz)}\text{d}t$
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