1.

Which of the following represents the canonical form of a second order parabolic PDE?

A. ( frac{ ^2 z}{ ^2}+ =0 )
B. ( frac{ ^2 z}{ }+ =0 )
C. ( frac{ ^2 z}{ ^2}+ frac{ ^2 z}{ ^2} =0 )
D. ( frac{ ^2 z}{ ^2}+ =0 )
Answer» B. ( frac{ ^2 z}{ }+ =0 )


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