• 22 April 2008 - I have just learned that I must move my office hour for Friday, 25 April 2008, due to a conflict. My office hour will be 0800-0850 this Friday. I am also available Thursday afternoon and at a number of other times on Friday if you would like to make an appointment. I apologize for the inconvenience.
• 21 April 2008 - Test 4 is now graded and the grades are in T-Square. Tests will be passed back in recitation on Wednesday, or you may come to my office hour this afternoon to pick up your test. Since 35 points were required to earn a perfect score, the score recorded is arrived at by dividing the total points earned by 3.5 to give a score where 10 is considered perfect. The grade distribution for this test in Section D1 is:
  • Mean = 6.31
  • Max = 8.57
  • 3rd Quartile = 7.75
  • Median = 6.82
  • 1st Quartile = 5.50
  • Min = 2.64
  If you notice any discrepancy between a grade I have recorded in T-Square and the grade on one of your tests or quizzes, bring it to my attention by the end of this week so that I can correct it. You must provide the original test or quiz for me to make any correction.
• 17 April 2008 - On Monday, 21 April 2008, I will be unable to teach our recitation section due to a conflict that I cannot reschedule. However, section D3 meets in a room large enough to accommodate the students from both sections, so on Monday please report to Skiles 249 for recitation. This change is for Monday ONLY. Next Wednesday, we will be back in Skiles 243 as usual.
• 16 April 2008 - Grades for Quiz 12 are now in T-Square. The D1 quiz grades (best seven) now have a median of 5.54 and a mean of 5.56.
• 14 April 2008 - The solution for Quiz 12 is now posted below.
• 14 April 2008 - The solution for Quiz 11 is now posted below and grades are in T-Square. This quiz was a classic application of Gram-Schmidt to find the orthonormal basis, and then you have Q and most of the information you need for R to do the QR-factorization. Please review the solution if you did not do well on this quiz! The quiz grades for D1 (based on each student's best seven) now have a mean of 5.42 and a median of 5.32.
• 12 April 2008 - I've had some inquiries about the quiz average. For D1, I've computed each student's quiz average using their top seven quizzes (as will be done when determining final grades) and then averaged them for the class. The result is that the quiz average for D1 is 5.3 (in fact, the median and mean are basically the same). I'll post an update to this after I grade Quiz 11 and again if we have any more quizzes this semester.
• 7 April 2008 - The solution for Quiz 10 is now posted below. It seems like students either knew what to do but couldn't do it fast enough/made arithmetic mistakes or else had no clue. If you're in the second group, be sure to review this technique or come talk to me!
• 6 April 2008 - Grades for Quiz 10 are now recorded in T-Square. The solution will be posted on Monday.
• 1 April 2008 - Grades for Quiz 9 are now recorded in T-Square. The solution is below as usual. This was straight off of the homework, so I'm rather disappointed in how many problems students had with this quiz.
• 27 March 2008 - Grades for Test 3 are now recorded in T-Square. Since 35 points were required to earn a perfect score, the score recorded is arrived at by dividing the total points earned by 3.5 to give a score where 10 is considered perfect. The grade distribution for this test in Section D1 is:
  • Mean = 7.75
  • Max = 10.43
  • 3rd Quartile = 8.82
  • Median = 8.07
  • 1st Quartile = 6.71
  • Min = 0.71
• 25 March 2008 - Grades for Quiz 8 are in T-Square, and the solution is linked below.
• 9 March 2008 - Grades for Quiz 7 are in T-Square. Solution will be posted Monday.
• 29 February 2008 - Grades for Test 2 are now recorded in T-Square. Since 35 points were required to earn a perfect score, the score recorded is arrived at by dividing the total points earned by 3.5 to give a score where 10 is considered perfect. The grade distribution for this test in Section D1 is:
  • Mean = 8.22
  • Max = 11.29
  • 3rd Quartile = 10
  • Median = 8.71
  • 1st Quartile = 6.71
  • Min = 3.57
  Many of you made great strides on this test, so keep up the hard work! Also, remember that grades in the course will weight your best two tests at 20%, your third-best at 15%, and your worst at 0%. I will be in or around my office (with a sign posted on the door to let you know where to find me if I'm not in) most of the afternoon today if you want to see me for any reason.
• 25 February 2008 - Quiz 6 grades are in T-Square. The solution is available below.
• 24 February 2008 - Practice Test 2 is on the main course website. There will be a review session for Test 2 on Tuesday at 1830 in Skiles 249.
• 17 February 2008 - Scores for Quiz 5 are in T-Square, and the solution is available below. The average on the quiz was 4.26.
• 7 February 2008 - Scores for Quiz 4 are in T-Square, and the solution is available below. This quiz did not go well for most of you. Please review the solution carefully. The key part of the quiz was re-writing the given function so that you have an (x-1) clearly showing. You cannot just plug in (x-1) to get the Taylor series expanded in powers of (x-1)! Statistics (Section D1 only) for Test 1 (all scores out of 10 by dividing raw points by 3.8): Mean = 6.79, Max = 10.79, Third Quartile = 8.16, Median = 7.24, First Quartile = 5, Minimum = 2.37. (Third quartile means that three quarters of students had that score or lower, first quartile means that one quarter of students had that score or lower.)
• 4 February 2008 - Scores for Test 1 are in T-Square. Statistics (median, mean, etc.) will be posted in a future announcement. Thank you to everyone who completed the office hours survey. As a result, my office hours are officially changing to what will be more convenient for a larger portion of the class. They will now be on Mondays from 1500 to 1600 and Fridays from 0900 to 1000. As always, please email me to set up an appointment if you are unable to come to office hours. I'm quite flexible and always happy to meet with students.
• 28 January 2008 - Quiz 3 scores are posted in T-Square and the solutions are online (link below). I will have the quizzes at the review session tomorrow evening if you want to pick up yours. Things to remember: The limit of a_k being 0 only tells you that the series converges for alternating series. Make sure you know which way things need to line up for the basic comparison test (e.g., to show a series diverges, you show that its terms are larger than those of a divergent series). When using the root test, be sure to take the root of the whole term. Many used the root test on the second problem and wound up with k(2/3) rather than having k^1/k(2/3).
• 28 January 2008 - The Office Hours Survey on T-Square has been extended through midnight Tuesday (0000 Wednesday). So far only seven students have responded, but overwhelmingly, it looks like moving at least one of my office hours will be beneficial. I want to get more input before I pick the new time, so please take the survey. Today's office hour will only be until 1025 due to an unavoidable conflict. I'm available most of the afternoon today or for awhile before the review session tomorrow if you'd like to see me.
• 25 January 2008 - The review session for Test 1 will be held from 1830 to 2030 on Tuesday evening in Skiles 249. I will be conducting the review, which will be for all 1502D students. Please come prepared with questions from homework or the practice test. Also, don't forget to take the office hours survey on T-Square.
• 23 January 2008 - I have posted a survey on T-Square (it's under Tests and Quizzes) about my office hours and potential other office hours if my current ones don't work. There are only six questions on it, so it should only take a minute or two. Please complete it before midnight Sunday so that I can change things for next week if that's what looks best for everyone. Also, there will be a review session for the first test next week, and I will be conducting it. Location will be announced, but at present, the time is 1830 on Tuesday the 29th.
• 17 January 2008 - Due to the confusion in yesterday's recitation over the improper integral of 1/x^p for p>1, I've posted some comments about this. It also includes a corrected version of the solution of the last problem from yesterday's recitation. I hope that you all take some time to review this.
• 16 January 2008 - Grades for Quiz 2 are now in T-square. This quiz did not go so well. The average was 4/10. There were a wide variety of mistakes made on the quiz. Please see the solutions (in the links section below) to get a better understanding of how you should have approached the problems. Note that on the first problem, you could also have used l'H&ohat;pital's rule again if you forgot that the limit of sin(x)/x as x approaches 0 is 1 and would get the same answer. For the second problem, you could also evaluate the integral by substitution (u=ln(x)) and see then that it diverges.
• 15 January 2008 - Grades for Quiz 1 are now in T-Square. The quiz will be passed back tomorrow during recitation. Solution will be posted in the morning. Average on the quiz was 7/10, with the primary problem being sloppy differentiation or forgetting how to evaluate trig functions. These are both crucial skills that you'd better brush up on. For tomorrow's recitation, we'll be catching up with lecture, so come with questions from 11.7, 12.1, and the first part of 12.2. This is especially important since there are no classes on Monday, so we'll have two lectures between tomorrow's recitation and the next one!
• 13 January 2008 - Recitation policies and expectations are now posted.
• 11 January 2008 - Recitation policies and expectations will be posted over the weekend.