Re: typo in ## -*- texinfo -*- in fslove.m?

[Tatsuro MATSUOKA]

Hello

I have also noticed that no explanation for 'OUTPUT', 'FJAC', 'FunValCheck' and 
'MaxFunEvals'.

OUTPUT is easily understood from executed result(s)

OUTPUT =
{
  iterations =  14
  successful =  11
  funcCount =  18
}

Is FJAC is a Jacobian Matrix at solution?

What 'MaxFunEvals' means?

Oops, the above are just questions which are to be asked in help list but allow 
me because the above
are related to the first post.  

Regards

Tatsuro

--- Tatsuro MATSUOKA  wrote:

> Hello
> 
> In fsolve.m
> In the usage top of the ## -*- texinfo -*-,
> ## @deftypefnx {Function File} address@hidden, @var{fvec}, @var{info}, 
> @var{output}, @var{fjac}] =}
> fsolve
> (@var{fcn}, @dots{})
> 
> The second argument in the left hand is '@var{fvec}'
> 
> However, in the explanation in the term fval is used, for example
> 
> ## On return, @var{fval} contains the value of the function @var{fcn}
> ## evaluated at @var{x}, and @var{info} may be one of the following values:
> 
> In the sample code the term 'fvec' in the help and also script itself, fvec 
> is used but not
> fval.
> 
> I guess that @var{fval} is perhaps to be corrected @var{fvec}.
> 
> Am I right?
> 
> I think that example with Jacobian in octave/doc/interpreter/nonlin.txi 
> should be corrected.
> The example is still in the style for Octave 3.0 even in the development 
> source.
> 
> @example
> @group
> function J = jacobian(x)
>   J(1,1) =  3*x(2) - 4*x(1);
>   J(1,2) =  4*cos(x(2)) + 3*x(1);
>   J(2,1) = -2*x(2)^2 - 3*sin(x(1)) + 6*x(1);
>   J(2,2) = -4*x(1)*x(2);
> endfunction
> @end group
> @end example
> 
> @noindent
> The Jacobian can then be used with the following call to @code{fsolve}:
> 
> @example
> [x, fval, info] = fsolve (@{@@f, @@address@hidden, [1; 2]);
> @end example
> 
> 
> The above example no longer works on octave 3.2 or later.
> 
> http://octave.1599824.n4.nabble.com/fslove-using-Jacobian-td2254038.html#a2254038
> 
> Perhaps the example is to be corrected in the manner shown by Thomas Shores 
> in the reply to my
> inquiry.
> 
> Regards
> 
> Tatsuro
> 
> 
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