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kangarooli

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[½»Á÷] ¡¾ÇóÖú¡¿¹ØÓÚmatcont symbolicallyÑ¡ÏîµÄÒÉÎÊ ÒÑÓÐ3È˲ÎÓë

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  The appearance of the System window depends on the presence of the Matlab
symbolic toolbox. If it is present, then we have the option to compute derivatives
of the object function by marking the dots in the line¡¯symbolically¡¯.If the Matlab
symbolic toolbox is not installed then the line ¡¯symbolically¡¯ is replaced by the
line ¡¯from file¡¯. This means that we can define derivatives by a file which may
have been generated by a symbolic package, e.g. Maple.
  We can also mark dots in the line ¡¯from window¡¯; this will open additional
windows where we can input explicit formulas for the derivatives of the object
function. If none of these options are chosen, then derivatives are computed
¡¯numerically¡¯, i.e. by finite differences


[ Last edited by kangarooli on 2011-3-31 at 09:30 ]
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