17
votes
2answers
263 views
+100

Sensitivity of NonlinearModelFit to model

I have come across a circumstance where NonlinearModelFit is very sensitive to the model used. I am aware that NonlinearModelFit ...
22
votes
1answer
439 views
+100

Efficient lazy weak compositions

In Mathematica all weak k-compositions of integer n can be generated using permutations of integer partitions: ...
9
votes
0answers
114 views
+50

Color degrades when using Copy As Bitmap

I have discovered a problem that affects my use of Mathematica. When I use the menu command Edit > Copy As > Bitmap the colors in the copy are subtly degraded. To make this more apparent I copied ...
13
votes
4answers
405 views
+150

How to delete subsets quickly?

I have some data like this: ...