[Fwd: Error in LUDecomposition?]

[Ronald Boisvert <boisvert@nist.gov>]

Sender: Rupert Parson <rupert.parson@gmail.com>
Subject: Error in LUDecomposition?


I am getting an java.lang.ArrayIndexOutOfBoundsException: 	at
Jama.LUDecomposition.<init>(LUDecomposition.java:107).

Looking at the code, I see that this line is:

           if (j < m & LU[j][j] != 0.0) {

and I am wondering if it should actually read:

           if (j < m && LU[j][j] != 0.0) {

as using the non-short-circuiting logical operator "&" rather than
"&&" would seem to make the first condition of the conditional
statement rather redundant!?

Many thanks,

Rupert Parson