8
votes
1answer
133 views

Strange behavior of BinCounts

Bug introduced in 8.0 and fixed in 10.0.0 Just try this example: ...
11
votes
2answers
199 views

Bug with SparseArray selector in Pick

I have created a notebook with two cells. This is the content of the first: ...
2
votes
0answers
226 views

Derivatives of list elements

Could someone explain the odd behavior of the Derivative function when drawing arguments from lists? We have, ...
27
votes
2answers
726 views

DeleteDuplicates not deleting duplicates

It is not surprising that DeleteDuplicates[{5,5.}] returns {5,5.} because DeleteDuplicates ...
5
votes
1answer
145 views

Bug in LengthWhile?

Is this a bug or my MMA went insane or I'm missing something? LengthWhile[Reverse@IntegerDigits[1000], # == 0 &] works fine, but with SameQ instead of Equal, ...
7
votes
4answers
296 views

Unexpected behavior from GatherBy in version 7

I have come across what appears to be a bug in GatherBy. It appears similar to the problem of using Table[Random[], {1000}] in ...