"...how it differs from the rocks"
Hi everyone,
Based on your feedback in class, I have taken a careful look at problem 11 on the review sheet (numerical methods). It turns out there was an error in the original differential equation – the correct version is: 
Once this correction is made, the answer key should be correct. My apologies!
Let me know if you have any questions,
Prof. Reitz
PRELIMINARY Midsemester Grades are posted on the Grades page (send me an email if you have forgotten the password).
However, these grades are based only on two criteria: WeBWorK performance (weighted 40%) and Exam 1 (weighted 60%, includes the results of the SPECIAL OFFER), and may not give the most accurate picture of “how you are doing in the class”.
I will be posting updated Midsemester grades during the Spring Break which include more data (namely, your Project and other OpenLab assignments, and Exam #2). These grades will give you a better picture of your overall performance in the class so far.
Heads up: The last day to drop the class with a “W” grade is April 19th. If you decide to drop, it is *much* better to do so before that date (but you should be aware of any financial aid impact that dropping a class may have). Please let me know if you wish to discuss it.
-Prof. Reitz
UPDATE: As decided in class on Tuesday, 3/28, we will make up for the two snow days as follows:
Regards,
Prof. Reitz
Hi everyone,
We will need to make up some material because of the days we have lost to snowstorms this semester. Let’s talk about it in class today.
-Prof. Reitz
From the Mathematics Department Chair:
Hi everyone,
My apologies for missing class today (my daughter is sick). I missed you! Your substitute Prof. Singh gave me an update – it sounds like he was able to cover repeated roots and complex roots, and you will get a chance to work on them in your WeBWorK assignments (due Tuesday). I encourage you to post questions here, and I’ll do my best to respond.
In the meantime, if you are looking for additional help, I wanted to leave you with a few resources on these two topics (repeated roots / complex roots).
Paul’s Notes
These are very complete notes – they include an explanation of each rule, and several examples worked out. Here are links for his notes on repeated roots, and complex roots.
Videos
If you learn better by watching, you can check out these videos from PatrickJMT: an overview, with two examples (one with two real roots, one with repeated roots), and an example with complex roots.
Best of luck,
Prof. Reitz
Hi everyone,
I hope your projects are going well! In this instance, creating a working project is more important to me than finishing fast – so I am extending the project deadline to next Tuesday, March 28th. Please reach out to me if you are having trouble completing it, and best of luck!
Regards,
Prof. Reitz
WeBWorK: Assignments 7-Trench-EulersMethod and 7b-Trench-ImprovedEulersMethod will be due on Tuesday 3/14 at midnight.
OpenLab: OpenLab #3: Numerical methods PROJECT - Part 1 due March 23rd
Hi everyone,
I wanted to present some of the results from the technology survey that you filled out last week. Take a look at the charts below – I’ll be making an announcement this week about what this means for our implementation of numerical methods in this class.
Best,
Prof. Reitz
UPDATE 2/21/17: Because Cooling problems were not covered in class today (Tuesday 2/21), I have changed the due date for Assignment 6-Modeling1-PopulationAndCooling to the following week (Tuesday, 3/7). However, I strongly suggest that you complete problems 1, 2 and 3 prior to the exam (population problems).
Exam #1 will take place on Tuesday, 2/28, covering material through Sec 4.2. A review sheet will be distributed on Tuesday, 2/21, and posted to the OpenLab.
WeBWorK: none
NOTE: Assignments 6-Modeling1-PopulationAndCooling and 6b-Modeling2-FallingObjects will be due one week after the exam, on Tuesday 3/7 at midnight.
OpenLab: none
WeBWorK: Assignments 4-Bernoulli-nosub, 4b-Homogeneous-YoverX and 5-Exact Due Tuesday 2/21 at midnight
OpenLab: none
Here is a flyer for math-specific tutoring this Spring, funded by a Perkins Grant. The tutors are City Tech students who excel in mathematics, and I have heard great things about them. Although the flyer says it covers only through MAT 1575, in fact they will help with more advanced courses as well – including Differential Equations (priority is given to classes through 1575, however).
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