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Fall 2019

MATH 20D

Ch. 1.1-1.2 & 2.1-2.3

Exact equations, integrating factors of exact equations, linear second order equations

1.1-1.2, 2.2-2.4, 4.2-4.4 covered on midterm. I did my very best to stick with two sides of one page to really get the gist of each section.

4.2-4.4: complex roots, homogeneous & nonhomogeneous eq

4.4-4.7 sections

7.2-7.4

Continuing non-homo. eq and Laplace Transforms

4.5-4.7, 7.3-7.6

Dirac delta functions (holiday Monday and exam Friday)

Matrix differential eq & homogeneous eq