and — (&) logical and
b=and(A), b=and(A,'*') b=and(A,'r'), b=and(A,1) b=and(A,'c'), b=and(A,2) A&B
and(A) is the logical AND of elements of
the boolean matrix A. and(A) returns %T ("true") iff
all entries of A are %T.
y=and(A,'r') (or, equivalently, y=and(A,1)) is the rowwise and. It returns in each
entry of the row vector y the and of the rows of x (The and is performed on the
row index : y(j)= and(A(i,j),i=1,m)).
y=and(A,'c') (or, equivalently, y=and(A,2)) is the columnwise and. It returns
in each entry of the column vector y the and of the columns of x
(The and is performed on the column index: y(i)= and(A(i,j),j=1,n))).
A&B gives the element-wise logical and of the booleans matrices
A and B .A and B must be matrices with the same
dimensions or one from them must be a single boolean.