Inverse error function for arguments close to 1
- To: mathgroup@smc.vnet.net
- Subject: [mg12653] Inverse error function for arguments close to 1
- From: Jacek Pliszka <pliszka@bethe.ucdavis.edu>
- Date: Sat, 30 May 1998 17:36:43 -0400
- Organization: University of California, Davis
Hi! I need to calculate: InverseErf[1-Exp[-x]] for x \approx 50. I am trying to use mathematica but it doesn't work for such a large values. Does anybody know how to solve that? Where to look for the proper approximation? I've looked through a few textbooks but I didn't find an answer. The only solution I have now is numerical solution of the equation Erf[z]+Exp[-x]=1 with high precision calculation for each integral needed for iteration step. Regards, Jacek Pliszka Tmp: pliszka@bethe.ucdavis.edu Perm: pliszka@fuw.edu.pl