The Math Forum

Search All of the Math Forum:

Views expressed in these public forums are not endorsed by NCTM or The Math Forum.

Math Forum » Discussions » sci.math.* » sci.math

Notice: We are no longer accepting new posts, but the forums will continue to be readable.

Topic: eigenvalues of A
Replies: 4   Last Post: Nov 4, 2009 11:25 PM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Arturo Magidin

Posts: 796
Registered: 8/24/06
Re: eigenvalues of A
Posted: Nov 4, 2009 10:06 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

On Nov 4, 8:56 pm, G Patel <> wrote:
> true or false.... eigenvalues of A are same as eigenvalues of kA
> (because if v is eigenvector for A, then kv is eigenvector for kA)

What is k, a scalar?

If so, then:

(i) What are the eigenvalues of a diagonal matrix?
(ii) If A is a diagonal matrix, what is kA?
(iii) What are the eigenvalues of kA, then?

If k is not a scalar, then what is it?

Arturo Magidin

Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum at NCTM 1994-2018. All Rights Reserved.