Re: Octave_doc.pdf

[Martin Helm]

Am Freitag, 24. Dezember 2010, 13:44:58 schrieb Martin Helm:
> Am Freitag, den 24.12.2010, 09:05 +0100 schrieb Salvatore Amico:
> > 3.
> > f = @(x) x*x-5;
> > [x, fval, info, output] = fzero (@f, 0.5, FunValCheck)
> > -> Syntax error: FunValCheck
> 
> The same here, use f as parameter not @f
> 
> [x, fval, info, output] = fzero (f, 0.5)
> 

You need to create an optimset to use FunValCheck

octave:3> opt = optimset("FunValCheck", 1);
octave:4> opt
opt =
{
  FunValCheck =  1
}

octave:5> f = @(x) x*x-5;
octave:6> [x, fval, info, output] = fzero (f, 0.5, opt)
x = -2.2361
fval = -6.2610e-08
info =  1
output =
{
  iterations =  7
  funcCount =  17
  bracketx =

    -2.2361  -2.2361

  brackety =

     6.2172e-15  -6.2610e-08

}