Re: Problem with funktion with four variables

• To: mathgroup at smc.vnet.net
• Subject: [mg31631] Re: Problem with funktion with four variables
• From: "Avraham Shinnar" <as1619 at columbia.edu>
• Date: Mon, 19 Nov 2001 03:11:12 -0500 (EST)
• Organization: Columbia University
• References: <9t86er\$r6n\$1@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

```The problem is the subscript - your definition has full form:
\!\(test[_\ Subscript[v, 0], \[Gamma]_, H_,
m_] := \(-\(\(\((m\ H)\)\ Cosh[
ArcSinh[\(Subscript[v, 0]\ \
\[Gamma]\)\/H]]\)\/\[Gamma]\^2\)\) - \(m\ ArcSinh[\(Subscript[v, 0]\ \
\[Gamma]\)\/H]\ Subscript[v, 0]\)\/\[Gamma]\)

try
\!\(test[v0_, \ \[Gamma]_, \ H_, \
m_] := \((\(\(-m\)*H\)\/\[Gamma]\^2*Cosh[ArcSinh[v0*\[Gamma]\/H]] -
m\/\[Gamma]*ArcSinh[v0*\[Gamma]\/H]*v0)\)\)

"Manuel Prinz" <manuel.prinz at t-online.de> wrote in message
news:9t86er\$r6n\$1 at smc.vnet.net...
> Hello Guys
>
> If I define this
>
> \!\(test[\(v\_0\) _, \ \[Gamma]_, \ H_, \
>       m_] :=
> \((\(\(-m\)*H\)\/\[Gamma]\^2*Cosh[ArcSinh[v\_0*\[Gamma]\/H]] -
>         m\/\[Gamma]*ArcSinh[v\_0*\[Gamma]\/H]*v\_0)\)\)
>
> and then try to calculate test[14,500,100,80] nothing happens!
>
> What could be the problem?
>
>
> Thanks!
>
>
> Manuel (Mathematica 4.0)
>

```

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