linef.htm
来自「模式识别的主要工具集合」· HTM 代码 · 共 43 行
HTM
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<html><head><title>Netlab Reference Manual linef</title></head><body><H1> linef</H1><h2>Purpose</h2>Calculate function value along a line.<p><h2>Description</h2><CODE>linef(lambda, fn, x, d)</CODE> calculates the value of the function<CODE>fn</CODE> at the point <CODE>x+lambda*d</CODE>. Here <CODE>x</CODE> is a row vectorand <CODE>lambda</CODE> is a scalar.<p><CODE>linef(lambda, fn, x, d, p1, p2, ...)</CODE> allows additionalarguments to be passed to <CODE>fn()</CODE>. This function is used for convenience in some of the optimisation routines.<p><h2>Examples</h2>An example of the use of this function can be found in the function <CODE>linemin</CODE>.<p><h2>See Also</h2><CODE><a href="gradchek.htm">gradchek</a></CODE>, <CODE><a href="linemin.htm">linemin</a></CODE><hr><b>Pages:</b><a href="index.htm">Index</a><hr><p>Copyright (c) Ian T Nabney (1996-9)</body></html>
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