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<font face="Courier New">Dear All,<br>
<br>
Just in case somebody is interested, find attached a Scilab
function to compute the sine integral function Si (the integral
from 0 to x of the sinc function), which cannot be expressed in
closed form with elementary functions.<br>
<br>
<i>It is preliminary, it doesn't test for appropriate input
argument.<br>
<br>
It works for real or complex matrices or N-D arrays.<br>
<br>
It can be easily modified to get the cosine integral function.<br>
<br>
Regards, <br>
<br>
Fderico Miyara <br>
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