IBM 5100

104
The E Function: Membership 'CD
Monadic (One-Argument) Form
There is no monadic form.
Dyadic (Two-Argument) Form: Membership A€B
The membership function result is a 1 for each element of argument A that can be
found among
the elements of argument 8 and a 0 for every element that cannot be
found. The shape of the result
is the same as the shape of argument A.
Arguments A and 8 can be any scalar, vector, or array:
l~.Z j,
2
3
'+
.::-
•• 1
j,
1.5.::l.
t)
..:.. 3
1+
5
0
'A'~'BANNA'
1
'AHC'~'BANANA'
1
1
0
At-2 2pl
~~
1:,.-
.J '7
Bt-4
Lf·p12
4t::·
... 1
78
,~
1
3
~)
7
B
1':>
....
4·~5
7B
:1.2
I+~;
"?B
:1. ~?
4
1
::-
•• 1
78 :1.2
4·~:;
78
:1.2
'+5
7B
:1.2
A~B
0 0
() ()
Bt-I+
'4·?) :I.
2
4
I::'
,J
7
B
A
1.
3
~'5
7
B
1 2 4 5
'7
B 1.
2
'+
1::'
J 7
8
:I. 2 4- S
A.::B
1-
0
t
:I.