Re: fsolve tolerance

[Alex Verstak]

You forgot to quote it.

fsolve_options('tolerance',1e-10)

=alex


On Sun, 1 Apr 2001, Jonathan Drews wrote:

> Hi:
> 
>  I am solving tan(x) - x and want to set a closer toleance. I try to set 
> fsolve_options and I see:
> 
> octave:4> fsolve_options
> 
> *** fsolve_options:
> 
> fsolve_options (KEYWORD, VALUE)
> 
> Set or show options for fsolve.  Keywords may be abbreviated
> to the shortest match.
>  
> Options for fsolve include:
>  
>   keyword                                  value
>   -------                                  -----
>  
>   tolerance                                1.49012e-08 
> 
> when I do fsolve(tolerance,1.0e-10) I get:
> 
> octave:5> fsolve(tolerance,1.0e-10)
> error: `tolerance' undefined near line 5 column 8
> error: evaluating expression near line 5, column 8
> error: evaluating argument list element number 1
> error: evaluating index expression near line 5, column 1  
> 
>  What am I doing wrong? TIA.
> -- 
>                                               Cheers,
>                                               Jonathan
> 
> 
> 
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