how do I subract 1d of a 2d array?

[altenbach]

Just for completeness, here's another simple way. Since it re-uses one of the input arrays, you only need to index the two rows to be subtracted, then use "replace array subset" to merge it back into the existing 2D array.

(The two tools are "index array" and "replace array subset".)

Message Edited by altenbach on 06-27-2006 05:26 PM