why no result & no error from this recursion

*To*: mathgroup at smc.vnet.net*Subject*: [mg82403] why no result & no error from this recursion*From*: Murray Eisenberg <murray at math.umass.edu>*Date*: Fri, 19 Oct 2007 05:04:00 -0400 (EDT)*Organization*: Mathematics & Statistics, Univ. of Mass./Amherst*Reply-to*: murray at math.umass.edu

Why does the following recursion produce neither a result nor an error message -- nor a system crash? Block[{$RecursionLimit=50002}, (If[#<1, "", "." <> #0[# - 1]] &)[50000]] I even tried setting $RecursionLimit=Infinity, but no change. I presume this is just bumping up against a hardware/OS limit, so I'm surprised to get no error message and no crash. -- Murray Eisenberg murray at math.umass.edu Mathematics & Statistics Dept. Lederle Graduate Research Tower phone 413 549-1020 (H) University of Massachusetts 413 545-2859 (W) 710 North Pleasant Street fax 413 545-1801 Amherst, MA 01003-9305

**Follow-Ups**:**Re: why no result & no error from this recursion***From:*Sseziwa Mukasa <mukasa@jeol.com>