**Announcements**

**Dec 18**- Final exam scores with the additional 2 points included are now
posted to E-Learning.
The final exam solution is linked from the schedule page.
The average for the exam was 82.6 with a
standard deviation of 11, which is quite similar to the first two
exams.

The letter grades are posted to E-Learning as numerical equivalents under the heading of "GPA" (A is 4.0, A- is 3.67, B+ is 3.33, etc.). A few students have 4.33 indicating that they deserved an A+ even though the UF system does not allow me to give such a grade.

*Have a Happy Holiday.* **Dec 14**- Scaled grades for homework, participation, and quizzes are now posted to E-Learning. There is a short study guide with information on the Final posted as the Dec. 7 lecture notes. I will be having a review session on Thursday from 2-4PM in NPB 1101 (not NPB 1002). Remember, the final is Friday from 10AM-12PM in NPB 1002.
**Oct 11**- As promised in the syllabus, I am giving you a grading scale after the
first exam. This grading scale is for your total score expressed out
of 100. Distribution of Scores for Exam 1
**score****letter grade**90-100 A 85-90 A- 80-85 B+ 70-80 B 65-70 B- 60-65 C+ 55-60 C 50-55 C- 45-50 D+ 40-45 D 35-40 D- 0-35 E **Sept 28**- I have read all of your responses on gaming in education.
__Thank you very much.__The concensus seems to be that while gaming will not replace traditional teaching, there might be a place for games to help in visualization and developing intuition. As such, gaming might be placed in a larger set of tools that includes simulations and visualization software. Several students also mentioned the role of competition in gaming, and the ability to accumulate rewards over time. **Sept 24**- The HW4 due date has been extended from Wednesday to Friday, September 30. On Friday there will be a take-home quiz due the following Monday, October 3.
**Sept 21**- There will be a quiz on Friday on the harmonic oscillator.
For the quiz you will need to remember the effect of a
_{+}and a_{-}on a general state psi_{n}. I will give you the expressions for x and p in terms of the raising and lowering operators.

Next Monday I will again have a study hall session starting at 2PM; however, I need to leave for a conference call by 3PM. **Sept 19**- In HW3 the correct form for the potential energy in 2(i) is
(1/2)m omega^2 x^2. This has been corrected on the assignment
posted to the website. The grader has asked that you please
**box**your answers on the homework. Please do that if you are not already doing so. **Sept 14**- HW3 is posted on the schedule web page. There will be a quiz again this Friday. On a trial basis I will have a "study hall" on Monday from 2-4PM for this week's HW. You can work on the homework with other students, and I will be present to answer any questions that come up.
**Sept. 13**- I have found another free matlab alternative, Freemat. FreeMat is available for Mac OS X, Windows, and Linux. The program leftside.m from Sept. 2 now works fine with Freemat and Octave. (I changed an "endfor" to "end".) The syntax for SciLab is slightly different.
**Sept. 12**- For both problems in the present homework assignment
psi
_{n}(x) = sqrt(2 /a) sin( n pi x/a). In problem 2 we set a = 1. Also, for help in programing the second problem see the link to code on Sept. 2 under Schedule. The file leftside.m is very nearly what you will need. (You will need to change the coefficients, c.) **Sept. 7**- There will be a quiz on Friday (Sept. 9) relating to HW1. The HW1 solutions are posted on schedule page. The new homework assignment is posted to the web site. Also, there is a participation question due on Friday at 8AM.
**Sept. 2**- I have decided to just post homework help directly to this
web site. For HW1, in problem 3 the function should include
a normalization factor: C x (x -a) not x (x -a).
Also, in computing the expectation values for problems 2 and 3,
the integral is from 0 to a because the functions are only non-zero
in that range. Finally, (sigma
_{x})^{2}= <x^{2}> - <x>^{2}and similarly for the momentum. **Aug. 27**- A matlab file and set of plots illustrating the uncertainty principle are linked from the schedule page. Supplementary material will always be linked from the schedule page.
**Aug. 21**- The first of the "participation" quiz/surveys has been posted to E-Learning. It is due on Wednesday by 8AM. To access it, go into E-Learning and select Tests & Quizzes on the left hand side.