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Re: Re: How to express this function.

  • To: mathgroup at smc.vnet.net
  • Subject: [mg84242] Re: [mg84237] Re: How to express this function.
  • From: Andrzej Kozlowski <akoz at mimuw.edu.pl>
  • Date: Sat, 15 Dec 2007 06:12:45 -0500 (EST)
  • References: <fjunch$27q$1@smc.vnet.net> <200712150416.XAA18940@smc.vnet.net>

Here is another definition, which has the (probably insignificant)  
advantage of extending naturally to complex arguments:


f[x_] := Abs[Arg[Exp[2 Pi I x]]]/(2 Pi)

Andrzej Kozlowski



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?
>
>




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