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author wolffd
date Tue, 10 Feb 2015 15:05:51 +0000
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wolffd@0 1 <html>
wolffd@0 2 <head>
wolffd@0 3 <title>
wolffd@0 4 Netlab Reference Manual linef
wolffd@0 5 </title>
wolffd@0 6 </head>
wolffd@0 7 <body>
wolffd@0 8 <H1> linef
wolffd@0 9 </H1>
wolffd@0 10 <h2>
wolffd@0 11 Purpose
wolffd@0 12 </h2>
wolffd@0 13 Calculate function value along a line.
wolffd@0 14
wolffd@0 15 <p><h2>
wolffd@0 16 Description
wolffd@0 17 </h2>
wolffd@0 18 <CODE>linef(lambda, fn, x, d)</CODE> calculates the value of the function
wolffd@0 19 <CODE>fn</CODE> at the point <CODE>x+lambda*d</CODE>. Here <CODE>x</CODE> is a row vector
wolffd@0 20 and <CODE>lambda</CODE> is a scalar.
wolffd@0 21
wolffd@0 22 <p><CODE>linef(lambda, fn, x, d, p1, p2, ...)</CODE> allows additional
wolffd@0 23 arguments to be passed to <CODE>fn()</CODE>.
wolffd@0 24 This function is used for convenience in some of the optimisation routines.
wolffd@0 25
wolffd@0 26 <p><h2>
wolffd@0 27 Examples
wolffd@0 28 </h2>
wolffd@0 29 An example of
wolffd@0 30 the use of this function can be found in the function <CODE>linemin</CODE>.
wolffd@0 31
wolffd@0 32 <p><h2>
wolffd@0 33 See Also
wolffd@0 34 </h2>
wolffd@0 35 <CODE><a href="gradchek.htm">gradchek</a></CODE>, <CODE><a href="linemin.htm">linemin</a></CODE><hr>
wolffd@0 36 <b>Pages:</b>
wolffd@0 37 <a href="index.htm">Index</a>
wolffd@0 38 <hr>
wolffd@0 39 <p>Copyright (c) Ian T Nabney (1996-9)
wolffd@0 40
wolffd@0 41
wolffd@0 42 </body>
wolffd@0 43 </html>