How do I verify that the function $$u(x,y)=x^2-y^2-y$$ is harmonic
Verify that the function $u(x,y)=x^2-y^2-y$ is harmonic
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sequences-and-series
harmonic-functions
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3What is the definition of harmonic? Do you know how to take partial derivatives? – 2012-11-10
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3What's the definition of a function being harmonic? Check that your $u$ satisfies it. – 2012-11-10