Solve non-trivial solution to a Matrix Function other than the solve block

Forum|Forum|10 years ago
November 22, 2015
1 reply
7249 views

Hi, everyone,

Right now I just want to find the non-trivial solution to the last equation above,

I can find that using the solve block, but since solve block cannot be used in programming,

I am afraid I have to find another way to solve a Matrix function with non trivial solution.

In Matlab, [eigenval, eigenvecs] = eig (K, M) would return to EV as eigenvecs, using the equation M*EV*lambda = K*EV, and it is easier for programming, say K & M varies.

So is there a way to solve non-trivial solution to a Matrix Function other than the solve block in Mathcad?

Thank you for your help!

Best

Shawn

Other

Best answer by Werner_E

In Matlab, [eigenval, eigenvecs] = eig (K, M) can return to both lambda and corresponding EVs, but not sure how to achieve it in Mathcad.

Would this help:

W

Werner_E

25-Diamond I

Have you tried "solve, fully" ?

But as long as you don't tell Mathcad that EV should be a vector or matrix, you will just get 0 as solution as this is the only solution of this equation - Mathcad treats EV as a scalar.