Idempotents of matrix in matlab

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Mohsen 2014-8-10

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https://ww2.mathworks.cn/matlabcentral/answers/147066-idempotents-of-matrix-in-matlab

回答： Emanuel Rosas 2021-4-4

I have code for a transmission line:

for k=1:Ns
  % Function to calculate Idempotents of Y*Z
  [Hk] = HkIdem(ZL(:,:,k),YL(:,:,k),lenght,f(k), md,Hm(k,:));
  HkIdem(:,:,:,k) = Hk;

but the matlab error is :

Undefined function or method 'HkIdem' for input arguments of
type 'double'.

I know that HkIdem is not a MATLAB function, and there is no function called that defined in all of the code that I have, but how can I calculate the Idempotents of matrix in matlab?

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amjad 2015-11-3

hi, i'm working with the same code . in his thesis he didn't mention those function (HmIdem and ModeDelay) . did someone contact him ? or found the missing code. thank you