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Re: function file question and plot using polar coordinates
From: |
Tetsuji \"Maverick\" Rai |
Subject: |
Re: function file question and plot using polar coordinates |
Date: |
Thu, 12 Jan 2006 03:54:17 +0900 |
User-agent: |
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9a1) Gecko/20060101 SeaMonkey/1.5a |
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Shai Ayal wrote:
> Tetsuji "Maverick" Rai wrote:
> Two newbie questions in one email :) Because the online document (and
> written document) doesn't help me in this part....
>
> #1. I am trying to write a function file, but octave complains loading
> the function file; e.g. I made a file of sombrero2(n) like (just copied
> "type sombrero")
> ----------sombrero2.oct--------------
> function sombrero2 (n)
>
> if (nargin != 1)
> usage ("sombrero (n)");
> endif
>
> if (n > 1)
> x = y = linspace (-8, 8, n)';
> [xx, yy] = meshgrid (x, y);
> r = sqrt (xx .^ 2 + yy .^ 2) + eps;
> z = sin (r) ./ r;
>
> mesh (x, y, z);
> else
> error ("sombrero: number of grid lines must be greater than 1");
> endif
>
> endfunction
> ----------------
>
> and tried "load sombrero2.oct", but octave says:
>
> octave:4> load "sombrero2.oct"
> error: load: sombrero2.oct: inconsistent number of columns near line 2
> error: load: unable to extract matrix size from file `sombrero2.oct'
>
> and denies. However if I copy&paste this function in octave's
> commandline prompt, sombrero2(n) works normally. What's the difference
> and how can I make octave read it? octave's document isn't clear on
> this to me...or am I missing anything?
>
>> The way to do this is to save it as sombrero.m and than just type
>
>> sombrero
>
>> at the command line. what you did, "load sombrero.oct" tries to load
>> this file into a matrix as if it were a sequence of numbers.
>
>
Thank you! It worked like a charm (at least it looked like a charm to
me:)). Then octave looks for *.m file automatically.
- -Tetsuji
- --
Tetsuji 'Maverick' Rai
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