and(&&)

X && Y

X and Y is a scalar/pair/vector/matrix. If X or Y is a pair/vector/matrix, the other is a scalar or a pair/vector/matrix of the same size.

Return the element-by-element logical X AND Y.

1 && 3;
// output
1

x=1 2 3;
x && 0;
// output
[0,0,0]

x=1 2 3;
y=0 1 0;
x && y;
// output
[0,1,0]

m1=1 1 1 0 0 0$2:3;
m1;

m1 && 0;

m2=1 0 1 0 1 0$2:3;
m2;

and(m1, m2);

t=table(1 2 2 3 as id, 4 5 6 5 as value);
t;

// output
select id, value from t where id=2 and value=5;   // SQL query