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Re: mathematica help please

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I executed your code in a fresh session and it worked allright.  Perhaps the name of one of the definitions (SetDelayed) had been used previously and not Clear-ed. It is good practice to use a semicolon ; at the end of each line (except, of course, in the Plots) - in those cases use different cells.  Also, avoid using uppercase letters in your variables.
-Tomas   

> Date: Sun, 8 May 2011 07:39:20 -0400
> From: arda1404@gmail.com
> Subject:  mathematica help please
> To: mathgroup@smc.vnet.net
>
> z = 0.08303 + I 0.4709
> y = I 4.782
> IR = 400
> VR = 154000/Sqrt[3]
> VS[l_] := ((l + (z*y)/2)*VR) + z*IR
> IS[l_] := ((l + (z*y)/4)*y*VR) + ((l + (z*y)/2)*IR)
> Plot[Sqrt[3]*Abs[VS[l]], {l, 0, 1100}]
> Plot[Abs[IS[l]], {l, 0, 1100}]
> S[l_] := 3*VS[l]*Conjugate[IS[l]]
> Plot[Abs[S[l]], {l, 0, 1100}]
>
>
> i write this code but it gives this error SetDelayed::write: Tag Integer in 400[l_] is Protected. >>
>
> help me pleasee
>

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Re: mathematica help please Tomas Garza <tgarza10@msn.com> - 2011-05-09 10:21 +0000

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