x = (1:5);
fprintf('x is a %d-by-%d object\n\n',size(x));
y = randn(5,1);
fprintf('y is a %d-by-%d object\n\n',size(y));
XY = x*y;
fprintf('x*y is a %d-by-%d object\n\n',size(XY));
XY
YX = y*x;
fprintf('\ny*x is a %d-by-%d object\n\n',size(YX));
YX
x is a 1-by-5 object
y is a 5-by-1 object
x*y is a 1-by-1 object
XY =
12.7259
y*x is a 5-by-5 object
YX =
-0.3999 -0.7998 -1.1997 -1.5995 -1.9994
0.6900 1.3800 2.0700 2.7600 3.4500
0.8156 1.6312 2.4469 3.2625 4.0781
0.7119 1.4238 2.1357 2.8476 3.5595
1.2902 2.5805 3.8707 5.1610 6.4512