[問題] 矩陣元素取代 不用迴圈硬幹
X = [0 0 0 1 1 1 1];
Y = [a0 a1;b0 b1;c0 c1];
如何不用迴圈硬幹
得到一個矩陣
[a0 a0 a0 a1 a1 a1 a1;
b0 b0 b0 b1 b1 b1 b1;
c0 c0 c0 c1 c1 c1 c1;];
謝謝
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