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Unformatted text preview: , 6.45pm 7.45pm, WESB 100 • February 27th, 6.45pm 7.45pm, WESB 100 • March 27th, 6.45pm 7.45pm, WESB 100 IMPORTANT: If you cannot make it to any of these you must inform me before 10am on Friday, Jan 10. Notes on Diﬀy Qs By Jiri Lebl. Download for free from hJp://www.jirka.org/diﬀyqs/ You can also order the whole book via the web site (cost is low). • We will also use some other sources as we go along. •
•
•
• Let’s test the clickers • What is the capital of Finland? A. Belgrade B. Moscow C. Helsinki D. Gothenburg E. The leJer F • What country produces the most peanuts? A.
B.
C.
D.
E. India China USA Canada Nigeria This week’s topics: • Examples and applica0ons • What is a diﬀeren0al equa0on (DE) • Classiﬁca0on of DEs: Linear vs nonlinear, 1st order, 2nd order, etc • Slope ﬁelds • Method of separa0on of variables • Integra0ng factor method (linear 1st order) • Reading: Lebl 0.2, 1.1 1.4. • Iden0fy ODEs and PDEs, classify as linear or nonlinear, 1st order, 2nd order, etc. • Lebl sec0on 0.2 • Which is NOT a diﬀeren0al equa0on? dy
(a)6
+ 3xy = 4
dx
y0
(b)8 =
y
d2 f
df
(c)2 2 + 7 + 4f = sin t
dt
dt
2
(d)h(x) + 2x cos(h(x)) = x...
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 Winter '08
 KEQINLIU
 Math, Differential Equations, Equations

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