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From "Mark R. Diggory" <>
Subject Re: [MATH] Matrix indices
Date Fri, 27 Aug 2004 13:27:13 GMT
I agree entirely with your argument. I would feel more comfortable with 
0 to n-1.


Kim van der Linde wrote:
> Hi All,
> I ran into a problem with the RealMatrixImpl class. The class is 
> designed such that it uses the default 1 to n counting for the rows and 
> columns. However, JAVA has as a default the 0 tot n-1 system. i now run 
> into the problem that some standard methods return an array of n (0 tot 
> n-1) while the methods require n+1 cells. I could of course write a 
> method to create a n+1 array, but I do not see much problems with using 
> the 0 to n-1 system of Java for the matrices. However, I could be 
> completly wrong. BTW, I saw that the JAMA packages uses the underlying 
> JAVA indexes, not the 1 to n system.
> I have no problem changing all the methods if you all agree that we 
> should change it....
> Cheers,
> Kim

Mark Diggory
Software Developer
Harvard MIT Data Center

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