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<HTML>
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<TITLE>TSP (libtsp/VR) - VRfDiffSq</TITLE>
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<BODY BGCOLOR="#FFFACD">
<H2>VRfDiffSq</H2>
<HR>
<H4>Routine</H4>
<DL>
<DT>
double VRfDiffSq (const float x1[], const float x2[], int N)
</DL>
<H4>Purpose</H4>
<DL>
<DT>
Find the sum of squares of the differences for two float arrays
</DL>
<H4>Description</H4>
This routine calculates the sum of the squares of the differences between
corresponding elements of two float arrays,
<PRE>
N-1 2
e2 = SUM (x1[i] * x2[i]) .
i=0
</PRE>
<H4>Parameters</H4>
<DL>
<DT>
<- double VRfDiffSq
<DD>
Sum of the squares of the element differences
<DT>
-> const float x1[]
<DD>
Input array (N elements)
<DT>
-> const float x2[]
<DD>
Input array (N elements)
<DT>
-> int N
<DD>
Number of elements in the arrays (may be zero)
</DL>
<H4>Author / revision</H4>
P. Kabal Copyright (C) 1995
/ Revision 1.5 1995/02/09
<H4>See Also</H4>
<A HREF="VRfDotProd.html">VRfDotProd</A>
<P>
<HR>
Main Index <A HREF="../libtsp.html">libtsp</A>
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</HTML>
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