Re: Plotting a parametric equation
- To: mathgroup at smc.vnet.net
- Subject: [mg111550] Re: Plotting a parametric equation
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Wed, 4 Aug 2010 07:54:47 -0400 (EDT)
- Reply-to: hanlonr at cox.net
` is a number mark
You have an undefined parameter, z
Table[ParametricPlot3D[
{0.5` (x + y), 0.5` (x - y),
z - 0.5` (x^2 - y^2)},
{x, -10, 10},
{y, -10, 10},
ImageSize -> 300],
{z, -10, 10, 10}]
Bob Hanlon
---- Mapsread <cw_chw at yahoo.com> wrote:
=============
Greetings,
I would like to see the graph of u=.5(x+y), v=.5(x-y), w= z - .5(x^2 -
y^2).
I entered this into the command-line of Mathematica:
ParametricPlot3D[{0.5` (x + y), 0.5` (x - y),
z - 0.5` (x^2 - y^2)}, {x, -1000000, 1000000}, {y, -1000000,
1000000}]
All I get is a big empty box spanning from -1 to 1 on all sides. Is
there something I need to do to make this work?
TIA
P.S. For some reason, Mathematica changes my "*" symbols to "'"
symbols. Does ' mean multiply?