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16-Pearl
January 8, 2019
Question

Setting up eigenvalue in mathcad

  • January 8, 2019
  • 2 replies
  • 4992 views

to all

 

I am struggling to set up the eigenvalue described in the attached mcad v15 sheet (or pdf). Could someone who understand these things enlighten me?

 

Thanks

Regards

2 replies

19-Tanzanite
January 8, 2019

Is something like the attached what you are looking for?

 

Alan

 

16-Pearl
January 8, 2019

Thanks for the input. Appreciated. Looks like I do not quite fully understand the equation (yet) as if one plots the results of the eigenvalue extraction the result is not what I expected. I attached a typical example of such plot

21-Topaz II
January 8, 2019

Hi,

The matrices A and B are singular, so it is not possible to calculate the eigenvalues.JXB1.jpg

16-Pearl
January 8, 2019

Thanks. Is it my test vector which is not correct? (does not work with 1 vector !) Do I need more vectors to make it work?

16-Pearl
January 24, 2019

Thanks for that. The theory part is pasted in the originally posted mcad sheet. I suspect that where [Hr(w)] is specified it's a matrix and I set-up my test with a vector ! One member corrected xv to XV from my original post to make it a matrix to make it work. I still don't know what sort of result to expect.