From help-octave-request  Thu May 27 08:39:02 1993
Subject: sum(null matrix) becomes null matrix not zero
From: che6yoh at sun dot leeds dot ac dot uk
To: help-octave
Date: Thu, 27 May 93 14:11:45 BST

Dear Sirs,

I am very sorry to trouble often.

If I execute 
>>a=[]
>>b=sum(a)
The result becomes b=[].
Is this specification of octave?
I expected b became zero like MATLAB.

I sent two other mails to help-octave at che dot utexas dot edu already.

1. The results of expm are strange.
   Does the problem occure only on my system?

2. Is there any way to execute external programs from octave?

3. Is there any way to get ASCII code of each character in a
   string?

I am looking forward to getting reply from you.

Yoshihiro Hashimoto
Dept. of Systems Eng., Nagoya Inst. of Tech.
hasimoto at coral dot system dot nitech dot ac dot jp
[Now]Dept. of Chem. Eng., The Univ. of Leeds
che6yoh at sun dot leeds dot ac dot uk
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