Re: problems

[Vic Norton]

On Sep 29, 2015, at 1:20 PM, Robert Setif <address@hidden> wrote:

> I would like to know why the file:
>  "
>   # hyp.m
>   function r=hyp(x,y)
>   # hypoténuse d'un triangle de côtés x et y
>   r=sqrt(x*x+y*y)
>   endfunction
>  "
> always alert :
>     " 
>    >> hyp
>    error: 'x' undefined near line 4 column 8
>    error: called from
>     hyp at line 4 column 2
>    error: evaluating argument list element number 1
>    error: called from
>     hyp at line 4 column 2
>  "
> Fortunately, this is not a crashing error.
> That problem happens with all my files.
> I do not know to declare in function-arguments a variable, 
>  for instance x as real, y as integer, m as scalar.
>  
> I also would like to change at the screen the shape of result 
>  from a  "for i=1:30,disp(i^2),endfor"  in order to 
>  request in a list-shape rather that column-shape, 
>  (with "disp" or another command).
>  Regards
>  Robert SETIF  address@hidden

I don't understand where your (first) problem is, Robert.

I created a file "hyp.m" in my Octave load path consisting of precisely

  # hyp.m
  function r=hyp(x,y)
  # hypoténuse d'un triangle de côtés x et y
  r=sqrt(x*x+y*y);
  endfunction

I see no problem with the following result.

octave> clear all
octave> side1 = 3;
octave> side2 = 4;
octave> hypotenuse = hyp(side1, side2)
hypotenuse =  5

- Vic