Why Doesn't N[Pi,i] Give i Digits For Small i, Mathematica 4,on NT
- To: mathgroup at smc.vnet.net
- Subject: [mg20220] Why Doesn't N[Pi,i] Give i Digits For Small i, Mathematica 4,on NT
- From: R&M <randmarg at magma.ca>
- Date: Wed, 6 Oct 1999 21:06:36 -0400
- Organization: Magma Communications Ltd.
- Sender: owner-wri-mathgroup at wolfram.com
If I execute:
Table[{i, N[Pi, i]}, {i, 1, 20}]
I get:
{{1, 3.14159}, {2, 3.14159}, {3, 3.14159}, {4, 3.14159}, {5, 3.14159},
{6, 3.14159}, {7, 3.14159}, {8, 3.14159}, {9, 3.14159}, {10, 3.14159},
{11, 3.14159}, {12, 3.14159}, {13, 3.14159}, {14, 3.14159}, {15,
3.14159}, {16, 3.14159}, {17, 3.1415926535897932},
{18, 3.14159265358979324}, {19, 3.141592653589793238},
{20, 3.1415926535897932385}}
I'd expect something like
{{1,3},{2,3.1},{3,3.14},{4,3.141},{5,3.1416},{6,3.14159},{7,3.141593},....
It seems N[] only works as expected above 16 digits of requested
precision.
Is my expectation wrong? What should I do to get what I want?
My platform is WinNT 4 SP4.