.* and * give me different answer
古いコメントを表示
F = [1.5 0.2; 0.2 1.3];
I = eye(2);
E = 1/2*(F'*F-I);
E =
0.6450 0.2800
0.2800 0.3650
E = 1/2*(F'.*F-I);
E =
0.6250 0.0200
0.0200 0.3450
Why did * operates differ from .*? Can someone show the math behind the .* operator? When I was doing it by hand I got the answer same as * operator.
採用された回答
amin ya
2019 年 7 月 28 日
* % matrix multiplication
.* % element wise multiplication
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