RE: How to evaulate a function and graph it
- To: mathgroup at smc.vnet.net
- Subject: [mg43254] RE: [mg43206] How to evaulate a function and graph it
- From: "John C. Erb, Ph.D." <John_C_Erb at prodigy.net>
- Date: Sat, 23 Aug 2003 08:08:28 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
Look at Mathematica's Help for ImplicitPlot
First, load the package by:
Needs["Graphics`ImplicitPlot`"]
Then (note that for this case, I set the function equal to zero):
ImplicitPlot[x^4 + 3 x^2 + 5 y^2 + x + y == 0, {x, -3, 4}, {y, -3, 4.3}];
Does this help?
J. Erb
-----Original Message-----
From: Rebeca Choy [mailto:rchoy at ula.ve]
To: mathgroup at smc.vnet.net
Subject: [mg43254] [mg43206] How to evaulate a function and graph it
Hi everyone,
How can I evaluate a function of 2 variables, say:
f(x,y) = x^4 + 3 x^2 + 5 y^2 + x + y
in an interval of [-3.0,4.0] and[-3.0,4.3] for x and y?
I need all the points between these two ranges to plot it
Thanks
Rebeca