Precision of output

John R. Wicks jwicks at
Mon Oct 29 06:15:44 CDT 2007

How can I set the precision of my output?  I use an ASCII viewer to write
the computed vector to a file and many of the entries should on the order of
10^-9, but they seem to be printing out at 0.  How can I get it to print to
higher precision?

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