http://staff.[url]www.ltu.se/~larserik/applmath/indexen.htm[/url]
（请将链接复制到浏览器打开，如有“[url]”请将它去掉，我不知道要怎么去....）
偶然找到的网页，还行，有学应数的可以看看。目录如下：

Contents:

I. Introduction to dimensional analysis and scaling.

II. Introduction to perturbation methods.

III. Introduction to the calculus of variations.

IV. Introduction to the theory of partial differential equations.

V. Introduction to Sturm--Liouville theory, the theory for the corresponding generalized Fourier series and some further methods for solving PDE.

VI. Introduction to transform theory with applications.

VII. Introduction to Hamiltonian theory and isoperimetric problems.

VIII. Introduction to the theory of integral equations.

IX. Introduction to the theory of dynamical systems, chaos, stability and bifurcations.

X. Introduction to discrete mathematics.

。