Re: Solutions for functions containing jump discontinuities
- To: mathgroup at smc.vnet.net
- Subject: [mg38988] Re: Solutions for functions containing jump discontinuities
- From: Bill Rowe <listuser at earthlink.net>
- Date: Thu, 23 Jan 2003 08:06:02 -0500 (EST)
- Sender: owner-wri-mathgroup at wolfram.com
On 1/22/03 at 6:14 AM, newspostings at burkert.de (Burkert, Philipp) wrote: >we are searching all solutions where the function f results null. >f[x_] := -7500 * Ceiling[(0.5 * x) / 880] + (5 * x) By inspection f[0]=0 Eliminating Ceiling to get f=-7500 * (0.5 * x) / 880 + (5 * x) gives a result that is linear in x. Since it is linear in x, there can only be one root. So, clearly the only root to the original equation is x = 0.