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j.c.
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It looks like Joseph O'Rourke has beaten me, but I've generated a bit more data than he has:

Let $l$ be the lower bound so that according to Piero the entries are uniformly distributed between $l$ and 1.

Here is a grid of eigenvalues of $N$ by $N$ matrices with $l=-.9$ (plots are labeled by $N$)

-.9 plot http://i583.photobucket.com/albums/ss275/jaspercrowne/Screenshot2010-07-03at92431AM.png

Here's the picture with $l=-.87$

-.87 plot http://i583.photobucket.com/albums/ss275/jaspercrowne/Screenshot2010-07-03at93508AM.png

Here's the picture with $l=-.93$

-.93 plot http://i583.photobucket.com/albums/ss275/jaspercrowne/Screenshot2010-07-03at92844AM.png

And here's a picture of the absolute value of the largest eigenvalue of the matrix as a function of $N$ (now the label is $l$)

plot of largest eigenvalues http://i583.photobucket.com/albums/ss275/jaspercrowne/Screenshot2010-07-03at95101AM.png

Edit based on Helge's comment: Here's a picture of $\max_{1\leq j \leq N} \sum_{n=1}^{N} u_j^N(n)$ as a function of $N$ (the $u_j^N$ are normalized eigenvectors) with $l=-0.9$

plot of largest sum http://i583.photobucket.com/albums/ss275/jaspercrowne/Screenshot2010-07-03at103302AM.png

And here's a picture of the further normalized version $\max_{1\leq j \leq N} \frac{1}{\sqrt{N}}\sum_{n=1}^{N} u_j^N(n)$

plot of largest sum normalized http://i583.photobucket.com/albums/ss275/jaspercrowne/Screenshot2010-07-03at103813AM.png

j.c.
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