symbolic formulas and numeric data

Please excuse this newbie question. I think the best way to ask this is with an
example. I've been successful at plotting data from a two-variable symbolic
formula:

syms a b;
lhs = a^2 + a + b^2 + b - 2;
ezplot(lhs);

But now I want to do two things:

1. Instead of plotting, I want the data (the actual solved values for 'a' and 'b')
placed into a matrix so I can manipulate the data via other methods.

2. I'd also like a loglog plot of the data (and I know that doesn't make much
sense for this formula).

Thanks for any insight!

-Chris


.

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