RE: machine size real numbers?
- To: mathgroup at smc.vnet.net
- Subject: [mg35807] RE: [mg35800] machine size real numbers?
- From: "Florian Jaccard" <jaccardf at eicn.ch>
- Date: Fri, 2 Aug 2002 02:41:30 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Hello Rick !
You have to use [ ] , not ( ) , for the argument of the function. And you
have to tell him to draw x[t], not just x...
In[1]:=
x[t_] := 1 + Cos[2000*Pi*t] + Sin[4000*Pi*t]
In[2]:=
Plot[x[t], {t, 0, 8000*Pi}]
works...
But 8000*Pi is a bit to much... You should draw until Pi/2000.
Much more interesting !
Meilleures salutations
Florian Jaccard
professeur de Mathématiques
EICN-HES
e-mail : jaccardf at eicn.ch
-----Message d'origine-----
De : Rick Dyer [mailto:rkdyer at cecs.pdx.edu]
Envoyé : jeu., 1. août 2002 10:35
À : mathgroup at smc.vnet.net
Objet : [mg35800] machine size real numbers?
In[1]:=
x[t_] := 1 + Cos(2000*Pi*t) + Sin(4000*Pi*t)
In[2]:=
Plot[x, {t, 0, 8000*Pi}]
Plot::"plnr": x is not a machine-size real number at t =
0.0010471975511965976
Plot::"plnr": x is not a machine-size real number at t =
1019.5597016296903
Plot::"plnr": x is not a machine-size real number at t =
2131.4776207838036
General::"stop": Further output of Plot :: "plnr" will be suppressed
during this calculation
I am trying to plot the function x(t) defined above, same thing
happens when i try to plot other similar functions always get an error
saying that the machine size number is nor real, I have tried to find
an answer in this message group, as well as the mathematica help
online and built in, if someone knows what is going on please help me.
My computer is an AMD 1Gig with 256MG of ram, if that is of
consequence. Windows XP pro
Any help would be appreciated
Thanks Rick