>> n=3; >> I=eye(n); >> P=perms(1:n); >> A=zeros(n^2,factorial(n)); >> for x=1:factorial(n) t=I(:,P(x,:)); A(:,x)=t(:); end >> A A = 0 0 0 0 1 1 0 0 1 1 0 0 1 1 0 0 0 0 0 1 0 1 0 0 1 0 0 0 1 0 0 0 1 0 0 1 1 0 1 0 0 0 0 1 0 0 0 1 0 0 0 1 1 0 >> rank(A) ans = 5 >> n=4; >> I=eye(n); >> P=perms(1:n); >> A=zeros(n^2,factorial(n)); >> for x=1:factorial(n) t=I(:,P(x,:)); A(:,x)=t(:); end >> A A = Columns 1 through 13 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 1 1 1 1 0 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 1 1 0 0 0 1 1 0 0 0 0 1 1 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 0 1 0 0 0 1 0 1 0 0 0 1 0 0 0 1 0 1 0 0 0 1 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 1 1 0 1 0 0 0 1 0 1 0 0 0 1 0 1 0 0 0 1 0 1 0 0 0 1 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 Columns 14 through 24 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 1 0 0 0 0 1 1 0 0 0 0 0 1 1 0 0 0 0 0 0 1 1 1 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 0 1 0 0 1 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 1 1 0 0 0 0 1 1 0 1 0 0 0 1 1 0 1 0 0 0 >> rank(A) ans = 10 >> n=1 n = 1 >> I=eye(n); >> P=perms(1:n); >> A=zeros(n^2,factorial(n)); >> for x=1:factorial(n) t=I(:,P(x,:)); A(:,x)=t(:); end >> A A = 1 >> rank(A) ans = 1 >> n=2 n = 2 >> I=eye(n); >> P=perms(1:n); >> A=zeros(n^2,factorial(n)); >> for x=1:factorial(n) t=I(:,P(x,:)); A(:,x)=t(:); end >> A A = 0 1 1 0 1 0 0 1 >> rank(A) ans = 2 >> n=5 n = 5 >> I=eye(n); >> P=perms(1:n); >> A=zeros(n^2,factorial(n)); >> for x=1:factorial(n) t=I(:,P(x,:)); A(:,x)=t(:); end >> rank(A) ans = 17