FunctionExpand bug. Serious.
- To: mathgroup at smc.vnet.net
- Subject: [mg25656] FunctionExpand bug. Serious.
- From: Jack Goldberg <jackgold at math.lsa.umich.edu>
- Date: Wed, 18 Oct 2000 02:52:27 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Hi Group, I posted a bug notice and someone was kind enough to point out an error in my polynomial example. The bug appears in using FunctionExpand on p[x] = x^6-x^4+2x^2-10 that is, FunctionExpand[ UnitStep[p[x]] ] returns 0 when it should return a sum of 2 two UnitSteps. Jack