This is the mail archive of the
gsl-discuss@sources.redhat.com
mailing list for the GSL project.
some problem with QAWF integration
- From: xie qiong <xieq at yahoo dot com>
- To: gsl-discuss at sources dot redhat dot com
- Date: Sat, 6 Apr 2002 13:05:58 -0800 (PST)
- Subject: some problem with QAWF integration
Hello there,
I have an urgent question about QAWF function.
I need to computer a semi-infinit integration
\int_{0} ^{\infty} f(x)*sin(w*x)/x dx
The integrand f(x) * sin(w*x) / x has a finite value
limit(equal to w) at x = 0.0 but f(x) / x doesn't a
finite value limit at x = 0.0.
In this case, what can I do to make QAWF work?
If I change the lower bound of this integration from 0
to 1e-3, QAWF will work but the error is large.
Thanks.
Qiong
__________________________________________________
Do You Yahoo!?
Yahoo! Tax Center - online filing with TurboTax
http://taxes.yahoo.com/