Elements of vorticity aerodynamics by Wu, James C.

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Differential equations for engineers the essentials by Kalbaugh, David V.

Solid modeling and applications rapid prototyping, CAD and CAE theory by Um, Dugan

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A first course in differential equations with modeling applications by Zill, Dennis G.

Differential equations with boundary-value problems by Zill, Dennis G.

Methods for partial differential equations qualitative properties of solutions, phase space analysis, semilinear models by Ebert, Marcelo R., Reissig, Michael

Lectures, problems, and solutions for ordinary differential equations by Deng, Yuefan

Numerical solution of differential equations introduction to finite difference and finite element methods by Li, Zhilin, Zhonghua, Qiao, Tang, Tao

A first course in partial differential equations by Buchanan, J. Robert, Shao, Zhoude

An introduction to second order partial differential equations classical and variational solutions by Cioranescu, Doina, Donato, Patrizia, Roque, Marian P.