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JMoravitz

Second year master's student.

I have TA experience in teaching for Finite Mathematics, Discrete Mathematics, and Linear Algebra.

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Top Questions
59 votes

I know of f-strings, but what are r-strings? Are there others?

python string python-3.x asked Sep 17, 2018 at 3:53
stackoverflow.com

29 votes

When is $\binom{2n}{n}\cdot \frac{1}{2n}$ an integer?

combinatorics number-theory elementary-number-theory asked Mar 16, 2016 at 18:54
math.stackexchange.com

12 votes

Big expansion boards for ticket to ride

ticket-to-ride custom-game-pieces asked Jul 16, 2015 at 3:55
boardgames.stackexchange.com

11 votes

Every simple planar graph with $\delta\geq 3$ has an adjacent pair with $\deg(u)+\deg(v)\leq 13$

graph-theory planar-graph extremal-graph-theory asked Dec 18, 2014 at 4:29
math.stackexchange.com

7 votes

Intended solution to proving $1994\mid 10^{900}-2^{1000}$ other than $1994\mid 10^{9k}-2^{10k}$

elementary-number-theory discrete-mathematics divisibility asked Feb 19, 2016 at 22:58
math.stackexchange.com

7 votes

Proving $(\Bbb R,+)$ has no proper subgroup isomorphic to itself

abstract-algebra group-theory group-isomorphism asked Jan 17, 2019 at 6:52
math.stackexchange.com

6 votes

How to pronounce Stirling Numbers of Second Kind ${n\brace k}$?

combinatorics notation soft-question stirling-numbers asked Sep 14, 2021 at 3:07
math.stackexchange.com

6 votes

Probability of consecutive floors on an elevator with more people

probability combinatorics asked Jun 28, 2015 at 23:21
math.stackexchange.com

6 votes

Temp agencies point distribution in “Welcome To...”

welcome-to asked Mar 13, 2022 at 3:00
boardgames.stackexchange.com

5 votes

How does infect step of epidemic interact with mutation?

pandemic pandemic-on-the-brink asked Jan 23, 2015 at 3:02
boardgames.stackexchange.com

1 2

Top Answers
47
Why is $\{\{1\}\}$ not equal to $\{1,\{1\}\}$?
math.stackexchange.com

40
Why does $3^{16} \times 7^{-6}$ become $\frac{3^{16}} {7^{6}}$?
math.stackexchange.com

37
Perfect square all 9's
math.stackexchange.com

33
Can a relation be both symmetric and antisymmetric; or neither?
math.stackexchange.com

33
Expected value of the number of flips until the first head
math.stackexchange.com

31
Weakly Connected Graphs
math.stackexchange.com

31
Is $n^7 - 77$ ever a Fibonacci number?
math.stackexchange.com

28
How to compose two functions?
math.stackexchange.com

25
Two players placing coins on a round table with the goal of making the last move
math.stackexchange.com

24
Why aren't these two solutions equivalent? Combinatorics problem
math.stackexchange.com

24
What is the Scientific Notation of Zero?
math.stackexchange.com

22
Smallest number such that the sum of digits and the product of digits is $2000$
math.stackexchange.com

22
Calculating Eigenvectors: Is my book wrong?
math.stackexchange.com

21
What is the cardinality of the set of the empty set?
math.stackexchange.com

20
Prove there always exists a partition such that vertices in each part have even degree
math.stackexchange.com

20
How many points uniquely define a square?
math.stackexchange.com

20
Counter-example for misused theorem in series convergence test
math.stackexchange.com

19
What is the difference between a loop, cycle and strongly connected components in Graph Theory?
math.stackexchange.com

17
How many 7-note musical scales are possible within the 12-note system?
math.stackexchange.com

17
Roman Numbers - Conversion to decimal number
math.stackexchange.com

17
Why aren't these negative numbers solutions for radical equations?
math.stackexchange.com

16
What is special about square numbers here?
math.stackexchange.com

16
difference between nonpositive and negative numbers?
math.stackexchange.com

16
Computing the determinant of a large matrix?
math.stackexchange.com

15
Why cannot $(2x^2 + x)^2$ be simplified to $2x^4 + x^2$?
math.stackexchange.com

14
When laying trominos on an 8x8, where must the empty square be?
math.stackexchange.com

14
Can infinity be divided by anything?
math.stackexchange.com

14
A simple mathematical expression for the periodic sequence $(1, -2, -1, 2, 1, -2, -1, 2,\dots)$
math.stackexchange.com

13
Why does proof by contrapositive make intuitive sense?
math.stackexchange.com

12
Let $S=\{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12\}$.How many subsets of S are there where the sum of all the elements in the subset is an odd number?
math.stackexchange.com

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