Rearranging Nested Lists
You will encounter nested lists if you use matrices or generate multidimensional arrays and tables. Mathematica provides many functions for handling such lists.
| Flatten[list] | flatten out all levels in list |
| Flatten[list,n] | flatten out the top n levels in list |
| Partition[list,{n1,n2,...}] | partition into blocks of size  × ×... |
| Transpose[list] | interchange the top two levels of lists |
| RotateLeft[list,{n1,n2,...}] | rotate successive levels by  places |
| PadLeft[list,{n1,n2,...}] | pad successive levels to be length  |
A few functions for rearranging nested lists.
This "flattens out" sublists. You can think of it as effectively just removing all inner braces.
| Out[1]= |  |
This flattens out only one level of sublists.
| Out[2]= |  |
There are many other operations you can perform on nested lists. More operations are discussed in "Manipulating Lists".
