A(i)

Description:

Get a member from a sequence.

Syntax:

A(i)

Note:

Get the ith member from the sequence A.

Parameter:

A

A sequence.

i

A member’s sequence number expression, which starts from 1.

Return value:

Values of members in a sequence

Example:

 

A

 

1

=[1,2,4]

 

2

=A1(3)

4

3

=["a","b"](1)

"a"

 

Get one or more child members from member sequences of a sequence:

 

A

 

1

=file("emp.txt").cursor@w().fetch()

Return a sequence of sequences:

2

=A1.(~2)

Get the 2nd member of each member sequence of A1’s sequence:

3

=A1.([~(1),~2])

Get the 1st and 2nd members of each member sequence of A1’s sequence:

4

=A1.groupc(~(3);[(~1),(~2)])

Perform computations on A1 and return the following result:

Related functions:

A (p)