Syntax question

[Henry F. Mollet]

*Calculation of left and right eigenvector
*belonging to largest eigenvalue of matrix,
*then matrix/vector multiplication:

[W,d] = eig(a);
d = diag (d);
imax = find (d==max(d));
V = conj(inv(W));
w1 = W(:,imax);          /line 5
v1= real (V(imax,:)).';  /line 6
Senmat = v1*w1''

I understand everything except the ":" in lines 5 and 6. Somehow they
instruct to pick the column vector and row vector, respectivly, which go
with the largest eigenvalue. But how does it work?
Henry



-------------------------------------------------------------
Octave is freely available under the terms of the GNU GPL.

Octave's home on the web:  http://www.octave.org
How to fund new projects:  http://www.octave.org/funding.html
Subscription information:  http://www.octave.org/archive.html
-------------------------------------------------------------