Re: About N in Mathematica 4
- To: mathgroup at smc.vnet.net
- Subject: [mg25388] Re: About N in Mathematica 4
- From: phbrf at t-online.de (Peter Breitfeld)
- Date: Fri, 29 Sep 2000 01:06:19 -0400 (EDT)
- References: <8qhn06$j09@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Sistrall <silvano.stralla at tin.it> schrieb: > Hi! > > I've a question about the function N in Mathematica 4. I haven't found > information about this problem. > > The question is: why if I use N[Pi,30] I'll have a number of 30 decimal > digits, but with N[Pi,10] or N[Pi,3] I'll get a number of 6 digits? > > The right number of digits is given only if I use a precision bigger than > the precision of the machine. But if I want a number of 3 decimal digits? > > Thanks. > > > This has been changed from Mathematica 3.0 to Mathematica 4.0. The display of the numbers has now to be done using NumberForm[], whereas N[] only sets the precision. There is more information on Wolframs site, IIRC look for the site named How does Mathematica 4.0 change N in the display of machine numbers? or similiar. Gruss, Peter -- =--=--=--=--=--=--=--=--=--=--=--=--=--= http://home.t-online.de/home/phbrf Peter Breitfeld, Bad Saulgau, Germany PGP public key: 08548045