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4.3.4  Accessing elements

The elements of sequences and lists are indexed starting from 0 in Xcas syntax mode and from 1 in all other syntax modes (see Section 2.5.2). To access an element of a list or a sequence, follow the list with the index between square brackets.

Examples.

If you want the indices to start from 1 in Xcas syntax mode, you can enter the index between double brackets.

Example.

Input:

L[[1]]

Output:

2

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