matlab矩阵求列的归一化

A = [19 0.92 0.94 225 20 0.98 0.96 208 22 0.9 0.8 200 24 0.99 0.88 235 23 0.87 0.98 215 21 0.86 0.85 212 24 0.94 0.9 205]for i = 1 : size(A, 2) temp = A(:, i); temp =temp/sqrt(sum(temp.*temp)); A(:, i) = temp;endAA = 0.3274 0.3763 0.3933 0.3963 0.3447 0.4009 0.4017 0.3664 0.3791 0.3681 0.3347 0.3523 0.4136 0.4049 0.3682 0.4139 0.3964 0.3559 0.4100 0.3787 0.3619 0.3518 0.3556 0.3734 0.4136 0.3845 0.3766 0.3611不知道哪里错了，求高手解决一下