precision of floating-point-numbers
- To: mathgroup at smc.vnet.net
- Subject: [mg19290] precision of floating-point-numbers
- From: Martin Stockhammer <martin.stockhammer at visualanalysis.com>
- Date: Sat, 14 Aug 1999 01:45:15 -0400
- Organization: Visual Analysis GmbH
- Sender: owner-wri-mathgroup at wolfram.com
Hi, can anybody tell me how $MinPrecision works. If I set $MinPrecision=100 and type: [In] 1. - 1.*10^-20 i get [Out] 1. If I type [In] SetPrecision[1., 100]-SetPrecision[1., 100]*10^-20 i get [Out] 0.9999999999999999999900000000000000000000000000000000000000000000000000000000000000000000000000000000 I want to set all calculation to minimum precision, how can I do this? Thank You Martin Stockhammer