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Ghersic
Ghersic
3:29 AM
I believe I've found a bug in simple list operations in Mathematica 10.

Does anyone see why the following only produces an error in the middle (2nd) line - only when it is of length 2? The error disappears if another similar element is added and it doesn't make sense!
{{{1,2,3,4},244},{{1,2,3,7},514},{{1,2,3,5},243}}/.{a_List,count_}:>a
{{{1, 2, 3, 4, 5}, 726}, {{1, 2, 3, 7, 6}, 275}} /. {a_List, count_} :> a
{{{1, 2, 3, 4, 5, 6}, 587}, {{1, 2, 3, 5, 4, 8},323}, {{1, 2, 3, 6, 8, 7}, 91}} /. {a_List, count_} :> a
Oh, I suppose it's because the contained lists are also of length 2, so it must get confused by that. Not sure how to resolve that but don't know that it's worth an actual question... hmm
 
 
4 hours later…
Pickett
Pickett
8:08 AM
@Ghersic You just have to change count_ to count_Integer
 
 
5 hours later…
Murta
Murta
1:23 PM
Getting into 10.000!!
 
 
6 hours later…
Sjoerd C. de Vries
Sjoerd C. de Vries
7:37 PM
@Murta I forgot to vote on some of your answers. Made good of that :). Congrats!
 
 
2 hours later…
Murta
Murta
9:11 PM
@Sjoerd tks! Now with 10k!
 

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