## Homework M231 Fall 2005, Jochen Denzler

This is a cumulative list, which I am collecting ahead of time in a way so I can use it all for future classes again. Things may deviate a small bit during the semester. For precise assignments and deadlines see the CLASS DIARY. Look up this page for sample solutions, and for modifications I may have added to book based hwk.

Book references are to: Nagle, Saff, Snider: Fundamentals of Differential Equations (6th ed)

Note that links to problems that are not (being) graded yet are dead. This is a feature, not a bug. As soon as I think links *should* be active, I'll precede that hwk with an at sign (@) in the table. If links are still dead, when the hwk is preceded by an @ sign, then please contact me with a bug report.

@ Sec 1.1: # 1-15
In 1-12, also try to answer the `nonlinear/linear' question for PDEs
@ Sec 1.2: #1,3,5,9,10,15,19,20a,21a,22a,23,25,26,29 view 1-19 as jpg
view 20-29 as jpg
(1-19: pdf) (1-19: ps)
(20-19: pdf) (20-19: ps)
@ Sec 1.3: #1,3,5,7 view pg 1 view pg 2 (pdf) (ps)
@ Hwk from notes pg 3 sol's see notes pg 4 sol's see notes pg 4
@ Sec 2.2: #1-5,7,12,17-19,21.
In 17-19,21 also give the maximal interval on which the solution is defined. 27b,29,31a-c
view 1-18 view 19-29 view 31 (pdf) (ps)
@ Sec 2.3: 1-6,8,11,16-18,20,25a,28 view (pg 1) (pg 2) (pg 3) (pg 4) (pg 5) all pdf
@ Sec 2.6: 10,13,18,21,22 view (pg 1) (pg 2) (pg 3) all pdf
@ Ch 2 Review: 1,2,4,8,9,15,17,32. Give interval of existence with 32 view (pdf) (ps)
@ Ch 2 Review: match all problems into categories view (txt)
@ Sec 3.2: 1,3,4,5,8 view (pg 1) (pg 2) (pg 3) (pg 4) all pdf
@ Sec 3.2: 9,14,19,27 view (pg 1) (pg 2) all pdf
@ Sec 3.3: 1,3,7,15 view (pg 1) (pg 2) all pdf
@ Sec 3.4: 1,3,10,25 (ok, I didn't assign those this time, but if you want to try'em go ahead) view (pg 1) (pg 2) (pg 3) (pg 4) (pg 5) all pdf
@ Sec 3.4: 2,4 view (pdf)
@ Sec 4.2:1-8,13,14,41,42,48 view pg 1 view pg 2 (pdf) (ps)
@ Sec 4.3: 10,20,22,32,33,35,37b view pg 1
pg 2 pg 3
(pdf) (ps)
@ Sec 4.4: 1-8,10,11,13; 16,17,29-31,34 view
pg 1, pg 2
(pdf) (ps)
@ Sec 4.5: 17,25,28,30, 32-37,39 view pg 1
pg 2 pg 3
(pdf) (ps)
@ Sec 4.5: 45 view pg 1
pg 2 pg 3
(pdf) (ps)
@ Sec 4.6: 1,6,10,22,24 view pg 1
pg 2 pg 3
(pdf) (ps)
@ Sec 7.2: 2,3,4,6,8,10,11,14-20,31 view pg 1
pg 2 pg 3
(pdf) (ps)
@ Sec 7.3: 2,4,6,8,10,12,14,16,18; 31 view pg 1
pg 2
(pdf) (ps)
@ Sec 7.4: 2,4,6,8,10,21,22,27,28; 15,16,33,36 view (pg1) (pg2) (pg3) (pg4) all pdf
@ Sec 7.5: 3,4,7,8,23,28; 37,38
WARNING: Typo in last line of sol'n to number 8: should be sin 2t and cos 2t instead of sin t and cos t
view (pg1) (pg2) (pg3) (pg4) (pg5) (pg6) all pdf
@ Sec 7.6: 1-5,9,12,14,16,18,27,28; 38,40
WARNING: Another glitch: number 2 is wrong: each of the exponentials must still be divided by s
view (pg1) (pg2) (pg3) (pg4-6) all pdf