Re: How to integrate a function from -inf to a ?

John D'Errico wrote:
>
>
> In article <ef0f36f.1@xxxxxxxxxxxxxxxx>, Integral
> <integral@xxxxxxx>
> wrote:
>
>> Thanks,but I need to implement the CDF of Student's
> t-distribution
>> and I don't have the statistics toolbox.
>
> Why does nobody ever take advice? (Just bitching.)
>
> I just looked in Abramowitz and Stegun, it shows the
> relationship between the Student's T distribution and
> the incomplete beta function. 26.7.1 in my (old) copy
> of A&S. Since matlab supplies the incomplete beta
> function as betainc, this should be all you need.
>
> John
>
> --
> The best material model of a cat is another, or
> preferably the same, cat.
> A. Rosenblueth, Philosophy of Science, 1945
>

I'm sorry, but I couldn't find the book you mentioned in the
University Library and I could only find the relationship between the
Beta function and the pdf of the student's T-distribution. That's why
I asked about the integration. Can you tell me the relationship
between the Beta function and the cdf of the t-distribution?

Thanks
.