Mathematics
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138 Aspen's user avatar
138 Aspen's user avatar
138 Aspen
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I am also a blogger at cnblogs.com, https://cnblogs.com/yhm138

Familiar with Enumerative Combinatorics

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All Questions Answers
Score Newest
question
14
Is the decimal part of $\exp (\pi \sqrt{n})$ dense on the interval $(0,1)$?
Dec 17, 2022
question
6
What is the probability that the circumscribed circle $B$ of three randomly selected points within a circle $A$ will be included in circle $A$?
Apr 2
question
5
Can we fill the table such that the number in each field is equal to the sum of the numbers in all the fields with adjacent edges?
Dec 17, 2022
question
4
The number of placement of $n$ pieces on the chessboard of $n\times n$, such that the piece $k$ cannot be placed in the $k$-th row nor $k$-th column
Dec 18, 2022
answer
4
Determine the number of odd binomial coefficients in the expansion of $(x+y)^{1000}$.
Dec 17, 2022
answer
4
Conjecture about prime numbers and fibonacci numbers
Aug 22
answer
3
closed form expression for the summation $\sum_{i=0}^{\infty}\binom{i+k}{i}x^ii^t$
Aug 25
answer
3
Solving $\cos\phi\cos(2\theta - \phi)+\sin(\theta - \phi)\sin(\theta + \phi)=0$ for $\theta$
Aug 25
answer
2
Counting diagonalizable matrices?
Aug 10
answer
2
Then number of ways of arranging the letters of word ALGEBRA in which either vowels or consonants but not both appear in alphabetical order
Feb 5
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15
Can you give a faster implementation with Mathematica for these q-analog functions?
12
Find the farthest pairs of two points in 2-dim
11
Can you give a faster implementation with Mathematica for these q-analog functions?
7
How do I get the current IPython / Jupyter Notebook name
6
Calculate max depth of JSON data

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