# A .m()

Read（186） Label: get, specified position, member,

Description:

Get members at specified positions.

Syntax:

 A.m(i) -n<=i<=n and i is not equal to 0; 1<=i<=n indicates getting the ith member; -n<=i<=-1 indicates getting the ith member from the bottom A.m(P) P is a non-zero n-integer sequence

Note:

A is a sequence whose length is n, from which you get members at specified positions. The function is generally used to get members reversely from a sequence.

Parameters:

 A A sequence expression i An integer P A non-zero n-integer sequence

Options:

 @r Turn back if the specified position exceeds the boundary of A, that is, to set i=if(i%n==0,n,i%n), where n is the length of A. @0 The member represented by a sequence number that exceeds the boundary of A will be excluded from the result.

Return value:

A value or a sequence composed of the members at the specified positions in sequence A

Example:

 A 1 [a,b,c,d,e,f,g,h,i,j] 2 =A1.m(2) b 3 =A1.m(-2) i 4 =A1.m([2,3]) [b,c] 5 =A1.m([-2,-3]) [i,h] 6 =A1.m@0([5,12]) [e] 7 =A1.m@r([5,12]) [e,b]

Related functions: