思路:將向量轉變成矩陣,然後利用矩陣作除法
- 代碼
p1 = reshape(linspace(1,9,9),3,3)
p2 = p1
r1 = p1 .*p2
r2 = repmat(sum(r1,2),[1 3])
r3 = r1./r2
- 結果
p1 =
1 4 7
2 5 8
3 6 9
p2 =
1 4 7
2 5 8
3 6 9
r1 =
1 16 49
4 25 64
9 36 81
r2 =
66 66 66
93 93 93
126 126 126
r3 =
0.0152 0.2424 0.7424
0.0430 0.2688 0.6882
0.0714 0.2857 0.6429
>> sum(r3,2)
ans =
1
1
1