Re: tiny negative numbers
- To: mathgroup at smc.vnet.net
- Subject: [mg92880] Re: [mg92849] tiny negative numbers
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Thu, 16 Oct 2008 05:07:04 -0400 (EDT)
- Reply-to: hanlonr at cox.net
Look up Chop Bob Hanlon ---- a <arorahina at gmail.com> wrote: ============= Hi, I am trying to solve a set of differential equations using NDSolve. But I'm seeing some really tiny negative numbers like this one: -1.28E-12. I'm guessing this is a machine-precision related problem. So I was wondering if I can somehow ensure that the variable values never go below 0, or alternatively, ensure that these tiny numbers equate to 0? Thanks! a -- Bob Hanlon