Re: Function evaluation
- To: mathgroup at smc.vnet.net
- Subject: [mg17587] Re: Function evaluation
- From: "Neal E. Tornberg" <neal.e.tornberg at boeing.com>
- Date: Mon, 17 May 1999 02:14:33 -0400
- Organization: Boeing
- References: <7hgdks$4c6@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Use the function Chop[] on your numerical result. phpcp at csv.warwick.ac.uk wrote: > > I have a function defined as > > f[s_,n_]:=BesselK[0,n*(1-s)]-BesselK[0,n]*BesselI[0,n*(1-s)]/BesselI[0,n] > > We can see that at s=0, f is zero. but mathematica returns a small number, > i think it is the workingprecision. I have tried to change the working > precision, but that does not help. the function still evaluates to a > 10^-16 number. I am using this function to define other functions. Ccan > someone help me find a way to evaluate this function correctly. > > cheers, > sanjay -- Neal E. Tornberg neal.e.tornberg at boeing.com Nobody here thinks I speak for Boeing. You shouldn't either.