Re: How to express this function.

*To*: mathgroup at smc.vnet.net*Subject*: [mg84241] Re: [mg84231] How to express this function.*From*: DrMajorBob <drmajorbob at bigfoot.com>*Date*: Fri, 14 Dec 2007 23:23:09 -0500 (EST)*References*: <28085834.1197680771654.JavaMail.root@m35>*Reply-to*: drmajorbob at bigfoot.com

Clear[f] f[x_] /; -1/2 <= x < 1/2 := x Sign[x] f[x_] := f@Mod[x, 1, -1/2] Plot[f@x, {x, -3, 3}, AspectRatio -> Automatic] Bobby On Fri, 14 Dec 2007 13:58:44 -0600, huxiaopengstat at gmail.com <huxiaopengstat at gmail.com> wrote: > f is a period continual function with period 1. > f equals x when 0<x1/2,equals -x when -1/2<x<1. > > How to express this function? > > -- DrMajorBob at bigfoot.com