2017 June 6,

Carleton College, Spring 2017, Prof. Joshua R. Davis, , CMC 228, x4095

Calculus has been a major driver of scientific and technological advancement ever since it was invented/discovered in the 1600s. Unfortunately, the material that one learns in a first or second calculus course is rarely sufficient for real-world problems. Why? Because many problems involve multiple interacting variables. For example, a satellite orbiting Earth is not moving in a one-dimensional space with coordinate *x* but rather a three-dimensional space with coordinates *x*, *y*, *z*. A manufacturing company trying to maximize its profit often must consider not just the price of one raw material, but prices of several materials and services. Therefore, our ability to apply calculus to real-world problems is greatly improved if we are able to handle several variables.

That's the point of this course: to extend the geometric and algebraic concepts of introductory calculus, to functions that either output or input multiple variables. Topics include partial derivatives, multiple integrals, and some vector calculus. The course materials are

*Calculus: Early Transcendentals*, 3rd Ed, by Jon Rogawski and Colin Adams. It is important that you use exactly this version of the text. Other versions may have wildly different section and problem numbering.- Near the start of the course we do some exercises to practice our math writing.
- An equation is a statement
- A sequence of equations is a sequence of statements
- The arrow "=>" indicates that one equation implies another
- Begin every sentence with plain text
- Avoid common errors
- Here are our exams from this term.
- Exam A, Solutions (Quartiles: 37/52, 32/52, 28/52)
- Exam B, Solutions (Quartiles: 45/57, 34/57, 28/57)
- Exam C, Solutions (Quartiles: 56/66, 48/66, 44/66)
- Here are some old exams, from the last time I taught this course, with quartiles and some extra study problems. They are not a promise of what our exams will cover, but they might help you practice.
- Exam A, Solutions, Practice (Quartiles: 50/68, 42/68, 38/68)
- Exam B, Solutions, Follow-Up (Quartiles: 48/72, 33/72, 31/72)
- Exam C, Solutions (Quartiles: 60/86, 55/86, 36/86)
- Here are some even older exams of mine, from when I taught a similar course at another school.

Our class meets in Weitz 230 during period 4A (MonWed 12:30-1:40, Fri 1:10-2:10) or 5A (MonWed 1:50-3:00, Fri 2:20-3:20). If you want to meet with me outside class, then try to make my office hours. If you cannot, then e-mail me, listing several possible times. My office hours are currently

- Monday first half of 6A in Weitz lobby
- Tuesday 11-12 in CMC 228
- Wednesday 3A and 6A in Weitz lobby
- Thursday 1:30-2:30 in CMC 228

Final grades (A, B, C, etc.) are assigned according to an approximate curving process. By this I mean that there are no predetermined percentages (90%, 80%, 70%, etc.) required for specific grades. The advantage of this system is that student grades don't suffer when I write a difficult exam. The disadvantage is that you cannot compute your own grade. Visit me in my office, if you want me to estimate your current grade for you. The following elements contribute.

- Participation: You are expected to attend every class meeting promptly, take notes, and participate in discussion and group work. You can make up for a deficiency in class participation by talking with me in office hours or generally demonstrating exceptional effort and interest. Participation is used to make small adjustments to the final course grade. Additionally, a requirement for passing this course is that you visit me in my office at least once during the first two weeks.
- Assignments: Assignments are the core of the course; they are where you learn the material. Altogether they count for 25% of your grade.
- Exam A: The first midterm exam is given in class sometime around the fourth week. It counts for 25% of your course grade.
- Exam B: The second midterm is given in class sometime around the eighth week. It counts for 25% of your grade.
- Exam C: The final exam is scheduled for Monday June 5. The 4A section takes the exam from 8:30 to 11:00, and the 5A section takes the exam from 3:30 to 6:00. The exam counts for 25% of your course grade. Self-scheduled final exams are not allowed.

You are expected to spend about 10 hours per week on this course outside class. Some students need to spend more than 10 hours. If you find yourself spending more than 15 hours, then talk to me.

On homework, you are encouraged to figure out the problems with other students. However, you should always write/type your solutions individually, in your own words. You may not copy someone else's work or allow them to copy yours. Presenting someone else's work as your own is a violation of Carleton's Academic Integrity standards.

Writing is not just for English and history majors. Written and oral communication skills are essential to every academic discipline and are highly prized by employers. In this course, your written work is evaluated both for correctness and for presentation. We will do some short exercises to help you with the latter.

Although homework is assigned every day, it is collected only once a week. When handing in a week's homework, *staple* your pages into a single packet, in the correct order. Multi-sheet packets that are not stapled are unacceptable. I will not accept packets that are not stapled. Is there a stapler in the classroom? Often not, so staple ahead of time. Is a paper clip okay? No.

Depending on time constraints in any given week, perhaps not all of your homework will be graded. In order to ensure full credit, do all of the assigned problems.

During the term, you have one free pass to hand in a week's homework packet late, no questions asked. Simply hand in your late packet when the next packet is due, writing "Late Pass Used" prominently at the top of the late packet.

Once you have used your late pass, no late assignments are accepted, except in extreme circumstances that typically involve interventions by physicians or deans.

If some medical condition affects your participation in class or your taking of exams, let me know in the first week of class. You may need to make official arrangements with the Disability Services.

To help you decode the schedule, here is an example. On Day 2 we discuss the dot product. Section 12.3 of the textbook covers that material; read it if you want another treatment. You have homework called "Day 2", which is due on Day 3.

Date | Day | Reading | Topics | Assignment | Due | Notes |
---|---|---|---|---|---|---|

M 3/27 | 1 | 12.1, 12.2 | vectors | Day 1 | 1, 2, 3 | |

W 3/29 | 2 | 12.3 | dot product | Day 2 | 3 | |

F 3/31 | 3 | 12.4 | cross product | Day 3 | 4, 6 | |

M 4/03 | 4 | 11.3, 12.7 | polar, spherical, cylindrical coordinates | Day 4 | 5, 6 | faults, faults, with slip, with slip |

W 4/05 | 5 | 13.1, 13.2 | vector-valued functions | Day 5 | 6, 9 | |

F 4/07 | 6 | 13.3, 13.4 | arc length, curvature | Day 6 | 7, 9 | |

M 4/10 | 7 | 14.1 | multivariable functions | Day 7 | 8, 9 | |

W 4/12 | 8 | 14.2, 14.3 | limits, continuity, partial derivatives | Day 8 | 9, 12 | |

F 4/14 | 9 | 14.4 | Mathematica lab (in CMC 201) | Day 9 | 10, 12 | introduction.nb, derivatives.nb |

M 4/17 | 10 | 14.5 | gradient, directional derivatives | Day 10 | 11, 15 | |

W 4/19 | 11 | Review | ||||

F 4/21 | 12 | Exam A | ||||

M 4/24 | 13 | 14.6, 14.7 | chain rule, optimization | Day 13 | 14, 15 | |

W 4/26 | 14 | 14.8 | Lagrange multipliers | Day 14 | 15, 17 | |

F 4/28 | 15 | 15.1 | double integrals | Day 15 | 16, 17 | |

M 5/01 | Midterm Break | |||||

W 5/03 | 16 | 15.2, 15.3 | double integrals, triple integrals | Day 16 | 17, 20 | integrals.nb |

F 5/05 | 17 | 15.3, 15.4 | triple integrals, coordinate changes | Day 17 | 18, 20 | |

M 5/08 | 18 | coordinate changes, applications | Day 18 | 19, 20 | ||

W 5/10 | 19 | 16.1 | vector fields, grad, curl, div | Day 19 | 20, 23 | |

F 5/12 | 20 | Mathematica lab (in CMC 201) | Q1 - Q7 | 23 | vectorfields.nb | |

M 5/15 | 21 | 16.2 | line integrals | Day 21 | 24, 26 | |

W 5/17 | 22 | Review | ||||

F 5/19 | 23 | Exam B | ||||

M 5/22 | 24 | 16.3 | fundamental theorem | Day 24 | 25, 26 | |

W 5/24 | 25 | 17.1, 16.4 | Green's theorem, parametrized surfaces | Day 25 | 26, 28 | |

F 5/26 | 26 | 16.5 | integration on surfaces | Day 26 | 27, 28 | |

M 5/29 | 27 | 17.2 | Stokes' theorem | Day 27 | 28 | |

W 5/31 | 28 | Review | ||||

M 6/05 | Final Exam 8:30-11:00 or 3:30-6:00 |

We did not cover the divergence theorem (Section 17.3).