🚀 go-pugleaf

 Does anybody have the general forms of eigenvalues and eigenvectors of an NxN
 pseudo-tridiagonal matrix of the form :
 
 For example with N=4;
 

	[(1+1/a) -1/a       0         0 ]
  A = 	[-1/a    (1+2/a)  -1/a        0 ]
	[ 0       -1/a    (1+2/a)  -1/a ]
	[ 0         0      -1/a  (1+1/a)] 

 Thanks in advance.


      Fred.
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