Advanced Search

Question: How to extract the index of an indexed variable?

Question:How to extract the index of an indexed variable?

emendes 455 Maple 2017
indices list indexed
April 20 2020
2

Hello

I have lots of lists of indexed variables (I am not sure if that is the correct name for it. Please correct me if it is not).  One example is (length of the list can change as well as the indices of the variables):

ans1 := [alpha[3, 7], alpha[3, 8], alpha[3, 9]]

and I need to retrieve two lists from it:  1) [3,3,3] and 2) [7,8,9].  I could not figure out how to do it.

Many thanks.

Ed
Please Wait...