[R] Symbolic eigenvalues and eigenvectors

[Steve Lianoglou]

Hi John,

It's common courtesy to keep all discussions originating from R-help
back on list so it can act as a helpful resource for others to peruse
when they have similar questions.

With that in mind, I think you forgot to CC the list with your very
informative follow-up reply to me:

On Tue, May 4, 2010 at 9:22 PM, John Mesheimer <john.mesheimer at gmail.com> wrote:
> Well, that reply was meant for the list.
>
> As for a personal reply.. well, you's pretty much a dumbass.

In this case, I thought it'd be helpful to let everyone here know how
nice you are when someone tries to help you out.

I was on my way out the door from school when I tried to shoot off a
quick email to help you find the answer to a problem that I
unfortunately misunderstood in your original email. I apologize for
not taking the time to appreciate the full details of your problem.

As for you, I guess you can apologize for, well, being you.

Good luck in your endeavors,

-steve

> On Tue, May 4, 2010 at 9:21 PM, John Mesheimer <john.mesheimer at gmail.com>
> wrote:
>>
>> Really? Is it? Hadn't thought of that.
>>
>> Anybody else?
>>
>>
>> On Tue, May 4, 2010 at 9:06 PM, Steve Lianoglou
>> <mailinglist.honeypot at gmail.com> wrote:
>>>
>>> Hi,
>>>
>>> On Tue, May 4, 2010 at 8:54 PM, John Mesheimer <john.mesheimer at gmail.com>
>>> wrote:
>>> > Let's say I had a matrix like this:
>>> >
>>> > library(Ryacas)
>>> > x<-Sym("x")
>>> > m<-matrix(c(cos (x), sin(x), -sin(x), cos(x)), ncol=2)
>>> >
>>> > How can I use R to obtain the eigenvalues and eigenvectors?
>>>
>>> R> help.search('eigenvalues')
>>>
>>> is a good start
>>>
>>> --
>>> Steve Lianoglou
>>> Graduate Student: Computational Systems Biology
>>>  | Memorial Sloan-Kettering Cancer Center
>>>  | Weill Medical College of Cornell University
>>> Contact Info: http://cbio.mskcc.org/~lianos/contact
>>
>
>



-- 
Steve Lianoglou
Graduate Student: Computational Systems Biology
 | Memorial Sloan-Kettering Cancer Center
 | Weill Medical College of Cornell University
Contact Info: http://cbio.mskcc.org/~lianos/contact