Thanks! It worked.
-----Original Message-----
From: Sebastien Greder [mailto:greder@in2p3.fr]
Sent: Tue 7/13/2004 2:12 PM
To: Bernd Reinhold
Cc: roottalk@pcroot.cern.ch
Subject: Re: [ROOT] Factorial(10) gives bad-numerical-expression-error
Hello Bernd,
replace Factorial by TMath::Factorial and power by Tmath::Power
and it should work.
cheers,
sebastien
On Tue, 13 Jul 2004, Bernd Reinhold wrote:
> Hi!
>
> binomial1 = new TF1("binomial1", "[1]*(Factorial(10))/(Factorial(x))/(Factorial(10-x))*power([0],x)*
> power(1-[0],10-x)"
>
> I get the following error message, when typing the function above in CINT
>
> *ERROR 30 :
> Bad numerical expression : "Factorial(10)"
> Error in <TF1::TF1>: function: binomial1/[1]*(Factorial(10))/(Factorial(x))/(Factorial(10-x))*
> power([0],x)*power(1-[0],10-x) has 0 parameters instead of 1
>
> And can I put some constraints on x by defining it as 'Int_t x;' before I define the function? Does TF1 recognize the x in its formula as the x defined before as Int_t?
>
> Thank you, Bernd.
>
>
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