List transpose using built-in?

[Didier Lachieze]

(10-28-2018 11:46 PM)StephenG1CMZ Wrote:  I was expecting the built-in sequence mat2list(transpose(list2mat)) to give the same results.
It is similar, but flatter than my implementation.

Here is another way to transpose a list of lists using built-in commands:

MAKELIST(mat2list(col(LST,I)),I,1,colDim(LST))

it should be faster than the double FOR loop.


Note: it seems, at least with the latest Prime beta firmware, that the column index start value is different between the Virtual Prime and the real Prime/Android Prime. On the Windows Virtual Prime, you would need to do: MAKELIST(mat2list(col(LST,I)),I,0,colDim(LST)-1)
I've reported this to calcbeta.