Re: Why?
- To: mathgroup at smc.vnet.net
- Subject: [mg109991] Re: Why?
- From: "David Park" <djmpark at comcast.net>
- Date: Fri, 28 May 2010 07:20:17 -0400 (EDT)
Specify the precision with a number mark "`". You don't have to use N here. 1.000000000000000000000001`60 - 1 Precision[%] 1.00000000000000000000000000000000000*10^-24 36 With less precision: 1.000000000000000000000001`30 - 1 Precision[%] 1.00000*10^-24 6 David Park djmpark at comcast.net http://home.comcast.net/~djmpark/ From: Alexey [mailto:lehin.p at gmail.com] Hello, Consider the following: In[1]:= N[1.000000000000000000000001 - 1, 60] Out[1]= 0.*10^-24 I can not understand why this happens. Can anyone explain the reason? What is about "arbitrary precision arithmetics"?