Dear UseRs,
I'm curious about the derivative of n!.
We know that Gamma(n+1)=n! So when on takes the derivative of
Gamma(n+1) we get Int(ln(x)*exp(-x)*x^n,x=0..Inf).
I've tried code like
> integrand<-function(x) {log(x)*exp(x)*x^n}
> integrate(integrand,lower=0,upper=Inf)
It seems that R doesn
On Fri, 7 Mar 2008, Max wrote:
> Dear UseRs,
>
> I'm curious about the derivative of n!.
>
> We know that Gamma(n+1)=n! So when on takes the derivative of
> Gamma(n+1) we get Int(ln(x)*exp(-x)*x^n,x=0..Inf).
>
> I've tried code like
>
>> integrand<-function(x) {log(x)*exp(x)*x^n}
>> integrate(inte
Faculty/Varadhan.html
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Max
Sent: Friday, March 07, 2008 1:41 PM
To: [EMAIL PROTECTED]
Subject: [R] Numerical Integration in 1D
Dear UseRs,
I'm curious about the derivative of n!.
We know that Gamma(n+
Prof Brian Ripley formulated on Friday :
> On Fri, 7 Mar 2008, Max wrote:
>
>> Dear UseRs,
>>
>> I'm curious about the derivative of n!.
>>
>> We know that Gamma(n+1)=n! So when on takes the derivative of
>> Gamma(n+1) we get Int(ln(x)*exp(-x)*x^n,x=0..Inf).
>>
>> I've tried code like
>>
>>> in
le/Faculty/Varadhan.html
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Max
Sent: Friday, March 07, 2008 1:41 PM
To: [EMAIL PROTECTED]
Subject: [R] Numerical Integration in 1D
Dear UseRs,
I'm cu
On Fri, 7 Mar 2008, Max wrote:
> Prof Brian Ripley formulated on Friday :
>> On Fri, 7 Mar 2008, Max wrote:
>>
>>> Dear UseRs,
>>>
>>> I'm curious about the derivative of n!.
>>>
>>> We know that Gamma(n+1)=n! So when on takes the derivative of
>>> Gamma(n+1) we get Int(ln(x)*exp(-x)*x^n,x=0..Inf)
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