March 17, 2006
The grade record has been updated with final exam scores and actual course grades. This includes all drops and the application of the curve. If you would like to see your final exam, feel free to stop by any of my office hours after the start of spring quarter. They will be listed here.
Enjoy the break!
March 15, 2006
Quick final exam stats: min: 29, 1st quartile: 58, median: 75, 3rd quartile: 83, max: 99.
Grades and final exam scores coming soon, I think.
March 10, 2006Koopa has some final exam review materials on his webpage.
March 7, 2006
In addition to Koopa's review session on Friday (see below), Steve is holding a review session from 4 to 5:30 PM in the MSC. Thank Steve if you go - he's doing this out of the kindness of his heart.
March 6, 2006
Koopa is having a review session this Friday at 6 PM in PAA 110. This is beyond the call of duty, so thank him generously.
February 24, 2006
The Grade Record is now online. Please check that your scores have been recorded correctly. If you find an error, please contact your TA right away.
February 23, 2006
Here are those surfaces we were looking at on Wednesday.
February 20, 2006
Solutions to the second midterm can be found on my exam archive. Use the link at right to go there.
February 20,2006
Well, exam 2 is graded. You'll be getting them back tomorrow in quiz section. Here are some statistics. I'm not going to post a translation scale; instead, I will be posting your scores with a current estimated grade that takes into consideration both exams and homework. That should happen by the end of the week.
| min | 19 |
| 1st quartile | 37 |
| median | 43 |
| 3rd quartile | 49 |
| max | 60 (two people) |
February 13, 2006
Koopa is holding a review session, this Wednesday, from 6PM at PAA A118. That's the Physics/Astronomy building.
February 13, 2006
Important note: since I didn't get to finish discussing velocity and acceleration, let's put off section 13.4 for the final exam. So you can axe 2(e) from the skills list for the exam (see below).
February 10, 2006
Here is an animation I just made to show the 3D spiral from the last example in Friday's lecture. Check out the curvature at the origin.
February 10, 2006
Here is a list of topics for the second midterm. Keep in mind that the most complete guide is the homework: if it's in the homework, it might show up on the exam.
February 6, 2006
Here are some statistics on the first midterm exam:
| n | 120 |
| min | 12 |
| 1st quartile | 49 |
| median | 59 |
| 3rd quartile | 64 |
| max | 70 (3 people) |
Very approximate grade translations are as follows:
| exam score | approximate 4.0 scale translation |
| <42 | 0.0 |
| 45 | 1.1 |
| 50 | 1.8 |
| 55 | 2.4 |
| 60 | 3.1 |
| 65 | 3.6 |
| ≥69 | 4.0 |
February 4, 2006
Here is a pdf with solutions to the first midterm exam.
February 1, 2006
Here are the parametrically defined curves examples that I used in lecture today. If you have a graphing calculator, you might experiment with plotting curves like these. You can also use software, like the freeware Gnuplot, to experiment with plotting curves.
January 30, 2006
Here is the list of topics for the first midterm. Keep in mind that the homework problems are your best guide to what could be on the exam.
Also, although my old 126 exams are available under Resources on the right side of the page, due to changes in the syllabus of 126, they are not a good guide for studying for the first midterm. Only the two most recent exams at the materials website should be studied.
January 28, 2006
Here is a pdf with a couple of examples of how to do some things you need to be able to do with lines and planes. There are homework problems in 12.5 that you can practice these methods with.
Also, you should practice being able to efficiently calculate cross products, so here are some examples you can use for practice:
- <1,2,3>x<4,5,6>=<-3,6,-3>
- <5,1,-2>x<3,7,8>=<22,-46,32>
- <1/2,1/3,1/4>x<2,5,1>=<-11/12,0,11/6>
- <100,10,1>x<-1,7,-2>=<-27,199,710>
January 25, 2006
When you are preparing for the exam next week, please keep in mind that the course has been changing recently. One consequence of this is that past exams, unless they are from last quarter, are not relevant: they will contain many problems that you do not need to know how to do. Please do not spend your time poring over old exams: there are only two at the math 126 site that you should be concerned with (the two most recent ones). And, since neither of them was written by me, I suggest that your lecture notes and homework are a more useful guide as to what could be on the exam.
January 24, 2006
None of my old exams are on the materials website, since the only time I've taught this course at UW was in Spring 2002. The exams I gave in that course can be found by clicking on the link "Dr. Conroy's Old 126 Exams" on the right under Resources.
January 21, 2006
To study Taylor series for midterm 1, I recommend using the text, since there are many answers available. In section 11.10, problems 3-18 are all good. Just don't worry about the "radius of convergence" part. Also, a "MacLaurin series" is just any Taylor series at b=0. Problems 23-30 and 39-46 are good too.
January 17, 2006
A correction to the homework: problem 5 in homework 5 should have f(x) defined so that f(0)=1, not f(0)=0. This has been corrected in the pdf for homework 5, feel free to download it again.
January 17, 2006
It seems to me that the Taylor notes that we've been using could use more pictures.
Here's one picture it should have. This shows y=sin x together with the Taylor polynomials Tn(x) for n=1, 3, 5, 7, 9, 11, 13, and 15.
(Why only odd n?) You can see that the larger n is, the more similar the graph of Tn(x) is to the graph of sin x: you have to go
farther and farther from x=0 to see that they are in fact different functions.
This suggests that larger n give better and better approximations of sin x.
January 10, 2006
Here (updated 1/11/06 4:39PM) are some hints and answers to a couple of the homework problems due this week.
Also, for Taylor homework #4, problem 8, feel free to use b=0 instead of b=1.
January 10, 2006
For those looking for a fun challenge, the ACMS program is now offering a weekly (?) Challenge of the Week. Take a look.
January 9, 2006
Problem 5 on Taylor HW #2, and problem 4 on Taylor HW #3 are both quite difficult, so I won't be grading those. Feel free to work on them as an extra challenge, but I am not requiring you to turn solutions in for those problems.
January 3, 2006
For the first two weeks of class, we will be working on material outside of the Stewart text. It is a set of notes about Taylor polynomials and Taylor series which can be found here.
January 2, 2006
Welcome to Math 126! Check this site often during the quarter for announcements, useful information and supplementary course materials. The right side column contains the course schedule. Soon it will have the homework assignments, syllabus and other useful stuff.