Spring 1997 Worksheets

Math 427K - Differential Equations


Worksheet 1 [pdf] [tex] - ordinary differential equations, population models

Worksheet 2 [pdf] [tex] - families of solutions to 1st order equations, direction fields, examples: mixing, interest, radioactive decay

Worksheet 3 [pdf] [tex] - exact equations, separable equations, uniqueness theorem

Worksheet 4 [pdf] [tex] - exact equations, separable equations, the brachistochrone and other examples

Worksheet 5 [pdf] [tex] - integrating factors, homogeneous equations

Worksheet 6 [pdf] [tex] - classification of equations, Newton's law of cooling and other examples

Worksheet 7 [pdf] [tex] - computer lab: using dfplot and Maple's dsolve

Worksheet 8 [pdf] [tex] - definitions, organize methods, Newton's second law, falling objects, existence and uniqueness theorem, mixing problem

Worksheet 9 [pdf] [tex] - practice exam

Worksheet 10 [pdf] [tex] - reduction of order, solution basis, Wronskian, principle of superposition, linear dependence/indepednece

Worksheet 11 [pdf] [tex] - reduction of order, solution basis, Wronskian, principle of superposition, linear dependence/indepednece

Worksheet 12 [pdf] [tex] - computer lab: constant coefficient equations, Euler equations, variation of parameters, Taylor series

Worksheet 13 [pdf] [tex] - variation of parameters, higher order equations

Worksheet 14 [pdf] [tex] - undetermined coefficients, limiting behavior of constant coefficient equations

Worksheet 15 [pdf] [tex] - computer lab: oscillator - damped/undamped, forced/free

Worksheet 16 [pdf] [tex] - undetermined coefficients

Worksheet 17 [pdf] [tex] - Laplace transform

Worksheet 18 [pdf] [tex] - springs, strings, Laplace transform

Worksheet 19 [pdf] [tex] - springs, eigenfunctions, energy, phase plane

Worksheet 20 [pdf] [tex] - practice exam

Worksheet 21 [pdf] [tex] - taylor series review: convergence, indexing

Worksheet 22 [pdf] [tex] - taylor series review: convergence, solving ode's

Worksheet 23 [pdf] [tex] - talyor series solutions, Airy's equation, computer lab

Worksheet 24 [pdf] [tex] - singular points - regular/irregular, Bessel equations

Worksheet 25 [pdf] [tex] - time-independent Schroedinger equation for a simple harmonic oscillator potential

Worksheet 26 [pdf] [tex] - partial differential equations, separation of variables, heat equation, time-dependent Schroedinger equation

Worksheet 27 [pdf] [tex] - function inner product, Fourier series, the space l2

Worksheet 28 [pdf] [tex] - Fourier series, orthogonality, computer lab

Worksheet 29 [pdf] [tex] - computer lab: Fourier series, Legendre polynomials

Worksheet 30 [pdf] [tex] - practice exam

Worksheet 31 [pdf] [tex] - separation of variables, heat equation: homogeneous ends, insulated ends, Bar-Wellington problem, Fourier series

Worksheet 32 [pdf] [tex] - wave equation, Fourier series, separation of variables

Worksheet 33 [pdf] [tex] - wave equation

Worksheet 34 [pdf] [tex] - practice with various pde's: heat, wave, and Laplace's equations

Worksheet 35 [pdf] [tex] - practice with various pde's: heat, wave, and Laplace's equations

Worksheet 36 [pdf] [tex] - Laplace's equation, Dirichlet problem, Fourier series

Worksheet 37 [pdf] [tex] - Laplace's equation: Dirichlet problem, Neumann problem, wave equation, heat equation

Worksheet 38 [pdf] [tex] - practice exam


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