Talk:Differential equation

Article Checklist for "Differential equation"

Workgroup category or categories	Mathematics Workgroup [Categories OK]
Article status	Developing article: beyond a stub, but incomplete
Underlinked article?	Yes
Basic cleanup done?	Yes
Checklist last edited by	--AlekStos 15:16, 24 March 2007 (CDT)

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Definition of Partial Differential Equations

I should explain why I changed the definition of PDEs. The original text said that the unknown in a PDE was a function of several variables, but nowhere did it say that a PDE involves derivatives w.r.t. those variables.