click here to save the pdf version of this article Mathematical PhysicsPartial Differential EquationThe Classes of PDEWe only discuss PDE with two variables. Basic PDE ExampleWhat matters is to fi...

click here to save the pdf version of this article Mathematical PhysicsBased on Qiao Gu’s and Liang’s. Complex FunctionBasic DefinitionsFor a complex function $f(z)=f(x+iy)=u(x,y)+iv(x,y...