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## Syntax question

**From**: |
Henry F. Mollet |

**Subject**: |
Syntax question |

**Date**: |
Sat, 22 Feb 2003 10:11:05 -0800 |

**User-agent**: |
Microsoft-Entourage/10.1.1.2418 |

*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
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**Syntax question**,
*Henry F. Mollet* **<=**