[Scilab-users] equivalent to eigs in scilab

[Tim Wescott]

On Wed, 2015-06-10 at 23:11 +0200, paul.carrico at free.fr wrote:
> Dear All
> 
> I get a Matlab file and I would like to know what is the equivalent to
> 
> Matlab:
> n = 6;
> [u,v]=eigs(K,M,n,'SM'); // where K and U and 2 sparse matrix
>                         //'SM' means Smallest for my understanting -> looking for the 6th lower eigen values, isn't it ?
> 
> Scilab:
> Spec or bdiag seems to be equivalent, but I failed in using them 
> 
> How should I to proceed ?
> 
> Thanks
> 
> Paul

spec (short for "spectrum"):

-->A = rand(3,3,"n")
 A  =
 
    0.3501626  - 1.4061926    0.5546874  
    1.0478272  - 1.0384734  - 0.2143931  
  - 1.3218008  - 1.7350313  - 2.0735088  
 
-->spec(A)
 ans  =
 
  - 0.2010690 + 1.3816266i  
  - 0.2010690 - 1.3816266i  
  - 2.3596815               
 
-- 

Tim Wescott
www.wescottdesign.com
Control & Communications systems, circuit & software design.
Phone: 503.631.7815
Cell:  503.349.8432