A(B)=0 What is its meaning?
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A=rand(5)
B=A>0.8
A(B)=0
Can you tell me what is A(B)=0 meaning?
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採用された回答
Fangjun Jiang
2019 年 3 月 6 日
B is a logical index matrix. You can see the value is 1 (true) or 0 (false) wherever the corresponding value in A is greater than 0.8.
A(B)=0 means for all those places where B's value is true, set the corresponding value in A to 0.
Use this example to see it better.
A=magic(5)
B=A>10
A(B)=0
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