From octave-sources-request at bevo dot che dot wisc dot edu  Tue Aug 29 04:03:27 2000
Subject: Patch to spline.m in matcompat package
From: Trond Varslot <trond at varslot dot net>
To: Paul Kienzle <pkienzle at kienzle dot powernet dot co dot uk>
cc: help-octave at bevo dot che dot wisc dot edu, octave-sources@bevo.che.wisc.edu
Date: Mon, 28 Aug 2000 20:25:21 +0200 (CEST)

Hello,

You have compiled an extensive package of compatibility functions. I use
it a lot, and fint it very useful.

I when I tried to use the function spline, however, it did not seem to
react very well to computing the value of a function in only 1 point (not
in only a few even. You might try this out:

x = 0:10; y = sin(x);xspline = 5.5; yspline = spline(x,y,xspline)

This is useful when computing a function based on tabular values. I
bellieve the following patch to spline.m should solve the problem, though
you might
have a more elegant solution:


75c75,76
<   h = x(idx+1) - x(idx);
---
>   h=x;
>   h(idx) = x(idx+1) - x(idx);



Yours sincerely
Trond Varslot



-----------------------------------------------------------------------
Octave is freely available under the terms of the GNU GPL.

Octave's home on the web:  http://www.che.wisc.edu/octave/octave.html
How to fund new projects:  http://www.che.wisc.edu/octave/funding.html
Subscription information:  http://www.che.wisc.edu/octave/archive.html
-----------------------------------------------------------------------