Re: Bi variate to mono variate functions

[David Bateman]

John W. Eaton wrote:

>On 30-Mar-2006, David Bateman wrote:
>
>| I have R14sp3 installed, which I believe is the latest version as it is
>| dated Feb 13, 2006. So I don't think it is fixed...
>
>Strange.  Here is what I see with the version installed on the UW COE
>systems (Version 7.1.0.183 (R14) Service Pack 3, August 02, 2005):
>
>  >> type myfun2
>
>  function y = myfun2(x,c)
>        y = 1./(x.^3-2*x-c);
>
>  >> p = 5
>
>  p =
>
>       5
>
>  >> quad (@(x) myfun2 (x, p), 0, 2)
>
>  ans =
>
>     -0.4605
>
>
>Also, this type of behavior is documented for fsolve:
>
>  >> help fsolve
>   FSOLVE solves systems of nonlinear equations of several variables.
>
>      [...]
>
>      To solve the system of equations for a specific value of c, first assign 
> the    value to c. Then create a one-argument anonymous function that captures
>      that value of c and calls myfun with two arguments. Finally, pass this 
> anonymous
>      function to FSOLVE:
>
>         c = -1; % define parameter first
>         x = fsolve(@(x) myfun(x,c),[-5;-5])
>
>      See also OPTIMSET, LSQNONLIN, @, INLINE.
>
>
>jwe
>
>  
>
Sorry my fault.. It helps if I define "p" :-)

D.


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David Bateman                                address@hidden
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