Most homework problems will be done on paper and/or in *Mathematica *and handed in for grading. Some will be done, in part, in the free *WeBWorK* on-line system.

See the Homework section of the About page for detailed information about homework due dates, format requirements, etc.

Since Homework 1, solutions to homework sets are posted on the Math 421 U-drive. You should have received an e-mail giving you a link to that course U-drive.

**Homework 1—due Monday 20 September**at start of class, except that #1 consists of the work from*WeBWorK*set 421HW1, which is due**Sunday 19 September 5:00 p.m.****Note:***WeBWorK*Problem 5 does not recognize the “sqrt” function notation. It seems to require that you enter your answers using (…)^(1/2) notation for square-roots of (positive) real numbers. Or, instead, you can use decimals rather than exact expressions involving square-roots at all.- Get Homework 1 solutions (pdf file)
- Get alternate Homework 1 solutions (nb) using Mathematica

**Homework 2****—****due Friday 24 September**at start of class, except that #1 consists of the two*WeBWorK*problems from set 421HW2, which is due**Thursday 23 September 5:00 p.m.****Note:**The*WeBWorK*questions on this assignment allseem to recognize exact expressions involving sqrt, sin, cos, e^(…), etc.**do****Homework 3****—due Monday 4 October**at start of class.**Homework 4****—due Wednesday 13 October**at start of class.**Homework 5****—due Friday 22 October**at start of class.**Homework 6****—due Monday 8 November**at start of class.**Homework 7****—due Wednesday 17 November**at start of class.**Homework8****—due Monday 22 November**at start of class.**Homework 9****—due Friday 10 December**at start of class. See this list of common errors made on HW9.