# All Questions

61,567 questions
2answers
562 views

### What does a/.b[c][[1]] mean? [closed]

The function b[c_] has been previously defined. Does that "1" refer to the smallest number of a list?
0answers
41 views

### A function for finding normal edge-5-colorings of cubic graphs

It would be nice if the following were available: Definition A normal edge-k-coloring of a cubic graph $G$ is a proper edge-$k$-coloring of the graph such that for any edge $e\in E(G)$, $e$ and the ...
0answers
35 views

### RSolve gives negative solutions [on hold]

I'm getting some curious behaviour with a certain equation; I asked Mathematica to solve a recurrence relation, and to my surprise it actually could, as I was doubtful it had a closed solution ...
2answers
157 views

0answers
34 views

### Combinatorics/Permutations [migrated]

A village has about 1 million residents. Suppose each resident has a jar with 100 coins in it.Two jars are considered to be “equivalent” if they have the same number of 10c, 20c, 50c, \$1 and \$2 ...

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