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How to draw several contours for one function, while only one contour

• To: mathgroup at smc.vnet.net
• Subject: [mg127675] How to draw several contours for one function, while only one contour
• From: loveinla at gmail.com
• Date: Tue, 14 Aug 2012 04:24:02 -0400 (EDT)
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• Delivered-to: l-mathgroup@wolfram.com
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Dear all,

Suppose I have two implicit functions, say, F(x, y) and G(x, y); both involve a parameter a.

In one Animate, I need:
 (1) several contours for function F(x, y) with its Max and Min values;
 (2) only one contour for function G(x, y)==0.
 (3) because I need to see how they change as parameter a changes, I want to use Animate to generate animation.

Can anybody help? Thanks.

• Follow-Ups:
  • Re: How to draw several contours for one function, while
    • From: Bob Hanlon <hanlonr357@gmail.com>