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How to evaulate a function and graph it

• To: mathgroup at smc.vnet.net
• Subject: [mg43206] How to evaulate a function and graph it
• From: Rebeca Choy <rchoy at ula.ve>
• Date: Wed, 20 Aug 2003 22:24:51 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

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

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