This is a random problem I am trying to figure out. The context doesn't matter.(adsbygoogle = window.adsbygoogle || []).push({});

I wish to define a function z(x, y) based on the following limits:

1. lim z (x→∞) = 0

2. lim z (x→0) = y

3. lim z (y→∞) = ∞

4. lim z (y→0) = 0

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# B I want to define a function knowing only it's limits

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