Math 207

• What you need:
  
  • Webassign. Webassign is used in all sections for the homework assignments. Consult your instructor's Canvas page to see how they are having you access Webassign. If your Webassign assignments appear on the class Canvas page, then follow the steps at this link to register and pay. Otherwise, follow the directions on your class Canvas page for logging into and paying for Webassign.
    • For all sections, you will need to buy access (approximately $23) and have 10 days to comply. It's best to wait until you are sure which section you are in, then follow instructions at the above link to pay.
    • WebAssign Office Hours -- UW WebAssign representatives will help students with difficulties registering or paying for WebAssign. Zoom links, with dates and times, are as follows:

    • A common mistake among first time WebAssign users is to type "xy" to indicate "x times y". Typing "x" followed by "y" is interpreted as a new variable with the two letter name "xy". To indicate "x times y", you should type "x*y" or "x space y". When you look at the typeset answer, you won't be able to see the difference between"xy" and "x space y". That's why I prefer to type "x*y", although I do tend to get lazy at times and just type "x space y".
  • Textbook. The text for the class is Elementary Differential Equations by Boyce and Diprima. Since the homework is not tied to the text, you can use any edition of Elementary Differential Equations and Boundary Value Problems from Edition 6 to present. Printed versions of these editions are readily available online at a low cost.
    For your convenience there is also an etext available from the bookstore at this link which contains the part of the text used in Math 207 (chapters 1-6). The cost for the etext is around $50.
    The older printed versions are cheaper. You don't need to buy the solutions manual. The WebAssign homework is different from the homework problems in the textbook, so the solutions manual will not be particularly useful (other than for practice).
    
    
  • 200-Level Math Lab. The department runs a lab staffed by assistants to help you with your questions in Math 207 (and a few other 200 level courses). You may also find other students there to discuss the homework with. The location and schedule can be found at this link: Math Lab Schedule
    
    
  • Math 207 Grade Policy. The department of mathematics has adopted a grade policy for this course. The median course grades for each section of Math 207 taught during the regular academic year will fall within the range of 3.0 +/- 0.2
  
  

  Sample Schedule

  Week	Additional Materials	Topics and Textbook Sections
  1:		Prerequisite Skills Some Basic Modelling § 1.1 Solutions to Differential Equations § 1.2 Direction Fields § 1.1
  2:		Separable First Order ODE's § 2.2 Linear First Order ODE's § 2.1
  3:		No Class Monday -- Martin Luther King Day Modelling with First Order ODE's § 2.3 Population Dynamics § 2.5
  4:	MIDTERM #1 ARCHIVE	Euler's Method § 2.7 Review Midterm 1
  5:		Second Order Constant Coefficient ODE's § 3.1 Complex Numbers---- notes on complex numbers Homogeneous equations with complex roots § 3.3
  6:		Homogeneous equations with repeated roots § 3.4 Method of Undetermined Coefficients § 3.5 Harmonic Oscillator § 3.7
  7:		No class Monday -- Presidents' Day Forced Undamped harmonic Oscillator Beats and Resonance § 3.8 Forced Damped Harmonic Oscillator -- Frequency Response and Phase § 3.8
  8:	MIDTERM #2 ARCHIVE	Review for Midtem 2 Midterm 2 Laplace Transform -- definition as an integral § 6.1 Inverse Laplace Transform using tables § 6.2
  9:		Solving IVP with Laplace Transforms § 6.2 Step functions and time delay § 6.3 § 6.4
  10:		Impulse/Delta Functions §6.5 Review for Final Exam
  11:	Final Exam Archive	Final Exam week

  Religious Accommodation Policy: Washington state law requires that UW develop a policy for accommodation of student absences or significant hardship due to reasons of faith or conscience, or for organized religious activities. The UW's policy, including more information about how to request an accommodation, is available at Religious Accommodations Policy. Accommodations must be requested within the first two weeks of the course using the Religious Accommodations Request form.