Parent Topic: <A href="http://www.pcigeomatics.com/cgi-bin/pcihlp/MODEL|Examples">Examples</a><hr>
<H4>Arithmetic</H4>
Perform a `Vegetative Index' calculation using channels 1 and 2,
saving the result to channel 7. If channel 7 is 32 bit real, the
following model is used:
<P>
<PRE>
   %7=(%1-%2)/(%1+%2);
</PRE>
If channel 7 is 8-bit, some scaling and adjustment is necessary:
<P>
<PRE>
   %7=((%1-%2)/(%1+%2))*128 + 127.5;
</PRE>
<hr>
Parent Topic: <A href="http://www.pcigeomatics.com/cgi-bin/pcihlp/MODEL|Examples">Examples</a><br>
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