任何人都可以帮助将多个标量输出转换为矢量输出吗?

Can any anyone help to convert multiple scalar outputs into a vector output?

对于这样的情况:

for i = 1:3
    X = 4*i
end

我得到以下输出

X =

     4


X =

     8


X =

    12

谁能帮忙输出这样的向量:X = [4 8 12] ?

X(3) = 0;
for i = 1:3
  X(i) = 4*i;
end