These docs are for v1.0. Click to read the latest docs for v1.2.

Arrays

Elements of arrays can be accessed directly using bracket notation. The value to use as an index starts at the number 1.

=ARRAY(1, 2, 3)[2]2

=ARRAY(1, 2, 3)[1]1

=ARRAY(1, 2, 3)[0]#ERROR!