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MathGroup Archive 2004

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RE : Problem with function

  • To: mathgroup at smc.vnet.net
  • Subject: [mg48328] RE : [mg48306] Problem with function
  • From: "Florian Jaccard" <florian.jaccard at eiaj.ch>
  • Date: Tue, 25 May 2004 07:16:43 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

Hello !

If you want your function to be integrable and so on, you have to use UnitStep :

g[t_]:=UnitStep[t,1-t]t+UnitStep[3-t,t-1](1.5-.5t)

In[4]:=
Plot[g[t],{t,-4,4}]


And then, just use "FourierTransform".

But have a look at the Help browser to look what parameters you wish.

Default :	ff[Ï?_] = FourierTransform[g[t], t, Ï?]



F.Jaccard


-----Message d'origine-----
De : DJkapi [mailto:djkapi at poczta.onet.pl] 
Envoyé : dimanche, 23. mai 2004 12:16
Ã? : mathgroup at smc.vnet.net
Objet : [mg48306] Problem with function

How to compute in Mathematica  fourier transform  of function:

            t     ,0=< t =<1
g(t)=
            1.5-0.5t , 1< t =<3

to tell the truth i dont even know how to make Mathematica print that
function.

Regards,
DJKapi





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