Re: Help! About drawing a high-precision 3D graph

• To: mathgroup at smc.vnet.net
• Subject: [mg96372] Re: [mg96295] Help! About drawing a high-precision 3D graph
• From: Murray Eisenberg <murray at math.umass.edu>
• Date: Thu, 12 Feb 2009 06:39:14 -0500 (EST)
• Organization: Mathematics & Statistics, Univ. of Mass./Amherst
• References: <200902111018.FAA16962@smc.vnet.net>

```I don't understand what you mean by Mathematica not supporting 15
digits.  On most platforms, Mathematics supports approximate numbers
with roughly 15 digits (unless you force higher precision); it's just
that the default display of numbers only shows 6 digits.  But you can
change the display by wrapping the number with NumberForm.

Nonetheless, I wonder what kind of output device you intend to use that
can distinguish points apart to that high a precision!

Chris wrote:
> I met a problem with drawing a 3D graph. My data to be used in Mathematica
> Software is 15 digits, which means an example of those data is
58.1234343253452.

These data represent the latitude an d longitude of world.

So, I need to precisely paint those coordinate in a 3D space as a tiny
point,

perhaps the method ListPoint3D to be used.However, it seems that
ListPoint3D

does not support morn than 6 significant digits. So, can anyone help me ?
>

--
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

```

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