Mercurial > hg > camir-aes2014
diff toolboxes/FullBNT-1.0.7/nethelp3.3/hesschek.htm @ 0:e9a9cd732c1e tip
first hg version after svn
| author | wolffd |
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| date | Tue, 10 Feb 2015 15:05:51 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/toolboxes/FullBNT-1.0.7/nethelp3.3/hesschek.htm Tue Feb 10 15:05:51 2015 +0000 @@ -0,0 +1,46 @@ +<html> +<head> +<title> +Netlab Reference Manual hesschek +</title> +</head> +<body> +<H1> hesschek +</H1> +<h2> +Purpose +</h2> +Use central differences to confirm correct evaluation of Hessian matrix. + +<p><h2> +Synopsis +</h2> +<PRE> +hesschek(net, x, t) +h = hesschek(net, x, t)</PRE> + + +<p><h2> +Description +</h2> + +<p><CODE>hesschek(net, x, t)</CODE> takes a network data structure <CODE>net</CODE>, together +with input and target data matrices <CODE>x</CODE> and <CODE>t</CODE>, and compares +the evaluation of the Hessian matrix using the function <CODE>nethess</CODE> +and using central differences with the function <CODE>neterr</CODE>. + +<p>The optional return value <CODE>h</CODE> is the Hessian computed using +<CODE>nethess</CODE>. + +<p><h2> +See Also +</h2> +<CODE><a href="nethess.htm">nethess</a></CODE>, <CODE><a href="neterr.htm">neterr</a></CODE><hr> +<b>Pages:</b> +<a href="index.htm">Index</a> +<hr> +<p>Copyright (c) Ian T Nabney (1996-9) + + +</body> +</html> \ No newline at end of file