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"Error using /. Matrix Dimensions must agree." (Tried both / and ./)

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Luis
Luis 2022-11-16
回答： Navya Singam 2022-11-21
Not sure why I am getting this error. I read through the explanation that the Matlab helper gives you, but I am still confused. Here is my code so far:
>> d31=-320e-12;
>> Yp=62e9;
>> Yfca=250e9;
>> vp=0.5;
>>a=linspace(0,1);
>> d31eff=-d31./(log(1-a)*((1/a)-0.5))
Error using /
Matrix dimensions must agree.
I am very new to Matlab so any additional details are welcomed. Thank you!

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回答（1 个）

Navya Singam
Navya Singam 2022-11-21
Hi Luis,
Changing this line of code wil resolve the issue.
d31eff=-d31./(log(1-a)*((1/a)-0.5))
to
d31eff=-d31./(log(1-a).*((1./a)-0.5));
You can refer to the following documenatations to understand more on the array operations and rdivide.
Array vs. Matrix Operations - MATLAB & Simulink (mathworks.com)
Right array division - MATLAB rdivide ./ (mathworks.com)

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