Function evaluation
- To: mathgroup at smc.vnet.net
- Subject: [mg17550] Function evaluation
- From: phpcp at csv.warwick.ac.uk
- Date: Fri, 14 May 1999 01:13:15 -0400
- Organization: University of Warwick, UK
- Sender: owner-wri-mathgroup at wolfram.com
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