Re: Integration of piecewise function

*To*: mathgroup at smc.vnet.net*Subject*: [mg52493] Re: Integration of piecewise function*From*: Peter Pein <petsie at arcor.de>*Date*: Mon, 29 Nov 2004 01:22:47 -0500 (EST)*References*: <cobqcr$6lr$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Riccardo wrote: > <inviati & spediti> > > I just defined a function like this: > > X[\[Omega]_] := 0 /; \[Omega] < 0; > X[\[Omega]_] := 1 /; 0 < \[Omega] < 2; > X[\[Omega]_] := -1 /; 2 < \[Omega] < 4; > X[\[Omega]_] := 0 /; \[Omega] > 4; > > Is it possible now to integrate it from -infinity to +infinity? I've > already tried and it doesn't give me the result. > Thanks. > > Luca > It's a bit tricky... X[w_] := UnitStep[w, 2 - w] - UnitStep[w - 2, 4 - w] -- Peter Pein 10245 Berlin