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May
11
comment ZELDA Guardian Puzzle Part II - Shortest Path (Unsolved for new rules)
Well this post doesn't contain a question and doesn't make sense unless you read the linked post. I'm guessing the votes to close are due to that. If the text from the previous question is edited in, I think all objections would disappear.
May
10
reviewed Approve Uniform convergence and maximum of an absolute difference
May
4
comment Brouwer's fixed point continuous function
For $C$, you can see math.stackexchange.com/questions/478517/… .
May
4
comment Brouwer's fixed point continuous function
For $A$, just map $(x_1,x_2)$ to $x_1$. Call the map $h:A\to [-1,1]$. You should be able to prove that if $f:A\to A$ has a fixed point, then $h\circ f\circ h^{-1}:[-1,1]\to[-1,1]$ has a fixed point, and vice versa.
May
4
answered Brouwer's fixed point continuous function
Apr
29
comment Meaning of “dS” in flux integrals?
It seems you are confused about $dS$, not $d\bf S$, is that right?
Apr
25
comment Twilight Zelda Guardian Puzzle : Shortest Path (UPDATE: ADDED RULES)
@LizWesley: Nice find! It remains to find out what happens if two guardians jump towards eachother when they are adjacent, or when a guardian and the player jump towards eachother when they are adjacent. A reasonable guess is that it works like it did when they had one square between them, like in the videos you linked.
Apr
22
comment Twilight Zelda Guardian Puzzle : Shortest Path (UPDATE: ADDED RULES)
Assumption 3 seems to disallow a two-man conga line, which I don't think should be illegal.
Apr
22
awarded  Pundit
Apr
22
comment Twilight Zelda Guardian Puzzle : Shortest Path (UPDATE: ADDED RULES)
How about we agree to say that any move that would have any of the guardians or the player collide or jump through each other is an illegal move? If someone else who has played the game and knows otherwise they may say so and we can change it.
Apr
21
comment Twilight Zelda Guardian Puzzle : Shortest Path (UPDATE: ADDED RULES)
What happens if the guardians jump into each other or into the player?
Apr
20
comment How many scientists can survive?
This question should stay here. It's an interesting math problem. (In my limited experience, too many of the puzzles on puzzling.SE rely on lateral thinking.)
Apr
20
comment How many scientists can survive?
@HagenvonEitzen: No. If the first scientist is wrong, then the remaining scientists will assume he was right, and base their calculations off that. But they are also using the incorrect assumption that the permutation is even, and these two wrongs miraculously cancel out.
Apr
20
comment How many scientists can survive?
It's not specified in the question, but the scientists should only be allowed to say a number between 1 and 101, or else the problem is trivial. See the comments to zahbaz's answer.
Apr
20
comment How many scientists can survive?
Nice! All scientists after the first one are saved due to two wrongs making a right!
Apr
20
comment How many scientists can survive?
Quincunx: When someone needs to say the number that the first scientist said, then what? He has to say something else, which messes up the calculation for everyone else.
Apr
20
comment Conversion/compatibility of compounded physical units
Related: Wolfram Alpha helpfully does conversions from things such as speed (km/h) to pace (min/km) even though they are different quantities. See for instance wolframalpha.com/input/?i=30+km%2Fh+in+min%2Fkm
Apr
15
comment How many ways to order vectors in $\{0,1\}^n$?
Have you tried calculating the first few terms and entering the sequence into oeis.org?
Apr
15
comment Mini Tetris Winning Configuration
Where is the problem from?
Apr
13
reviewed No Action Needed algebraic equation with trace