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Feb
19
answered Robot on a grid. Find if it can reach a certain position.
Feb
19
asked The $8$-Puzzle and $2$-Cycles
Feb
16
awarded  Yearling
Jan
16
accepted Are all functions $f:\mathbf{Z}\to\mathbf{Z}$ “continuous”?
Jan
16
asked Are all functions $f:\mathbf{Z}\to\mathbf{Z}$ “continuous”?
Jan
11
awarded  Popular Question
Dec
10
comment
@Bak1139, are you familiar with clicking users' profiles to deduce whether they know how the system works?
Dec
10
awarded  Caucus
Nov
28
comment Bipartite Graph and Non-connected node?
Do you know what it means for a graph to be bipartite?
Nov
28
comment Naturality of $n$-truncation
Please fix the title of your question.
Nov
28
revised Derivation of Simple Projectile Motion with Drag
deleted 13 characters in body
Nov
27
comment Derivation of Simple Projectile Motion with Drag
I see. So I have to treat the components individually.
Nov
27
accepted Derivation of Simple Projectile Motion with Drag
Nov
27
revised Derivation of Simple Projectile Motion with Drag
deleted 2 characters in body
Nov
27
revised Derivation of Simple Projectile Motion with Drag
I reworded the question.
Nov
27
asked Derivation of Simple Projectile Motion with Drag
Nov
21
comment Prisoners Problem
To execute a finite number of prisoners, a strategy must be construed in such a way that after the execution of prisoner $m$, all successive prisoners guess the color of their hats correctly.
Nov
5
awarded  Notable Question
Aug
19
comment If the integral $\int_0^\infty xf(x)\,dx$ converges, so does $\sum_{n=1}^{\infty}\int_0^{\infty}f(x+n)\, dx$
What have you tried? Please show your work.
Aug
19
answered Assumptions in Word Problems (Calculus)