Resultados de
a = [ 1 2 3 ]
a =
     1     2     3
b = [ 3; 5; 8]
b =
     3
     5
     8
x = a + b
x =
     4     5     6
     6     7     8
     9    10    11
Would it be a good thing to have implicit expansion enabled for cat(), horzcat(), vertcat()? There are often situations where I would like to be able to do things like this:
 x=[10;20;30;40];
 y=[11;12;13;14];
 z=cat(3, 0,1,2);
 C=[x,y,z]
with the result,
 C(:,:,1) =
    10    11     0
    20    12     0
    30    13     0
    40    14     0
C(:,:,2) =
    10    11     1
    20    12     1
    30    13     1
    40    14     1
C(:,:,3) =
    10    11     2
    20    12     2
    30    13     2
    40    14     2

