### The most important thing: preparation 🏃

*Make sure you know calculus.* If you were placed in this class but don’t know calculus well, it will be very hard.

- In particular:
- Know the difference between derivatives and integrals
- Know integrals and derivatives of common functions: $\sin{x}$, $e^{ax}$, $\ln x$, etc.
- Know techniques including integration by parts and $u$-substitution.

- Calculus review materials in Canvas.

### The other important thing: work 👷

There is a lot to learn! Don’t fall behind!

- Start working in week one. 📆
- Keep up day to day (or at least week to week).
*Friday’s lecture will be easier to follow if you have understood Thursday’s lecture.*
- Attending every lecture but doing no work is a poor strategy.
- Read the book 📖, work through the examples, and
*try to understand the ideas*. Then do the homework.
- Spend 2-3 hours working for every hour of lecture.

### Your time is valuable 🕰️ = 💵

Too many students take this class two or more times before passing. Put in enough time and work to pass it on the first attempt.

### Our time is valuable ⏲️ = 💰

Your instructors put a lot of time into planning and teaching the class. We like to see positive results.

### Understand the grading scheme

Component |
Contribution |

WileyPlus Homework |
10% |

Quizzes |
10% |

MATLAB Assignments |
16% |

Common Midterm Exam I |
17% |

Common Midterm Exam II |
17% |

Final Exam |
30% |

- Nothing is optional. Skipping the MATLAB drops you two 2️⃣ letter grades.
- Homework and quizzes are there to encourage you to keep up
*every week*.
- The homework is (relatively) easy. It can compensate (somewhat) for poor test performance.

### Why so much MATLAB?

- MATLAB (and computing more generally) is a tool to help visualize the solutions to differntial equations, which helps you think about the meaning of solutions and not simply write down formulas.
- Numerical methods (e.g. Euler’s method, sec. 2.7) are an essential tool for understanding ODE. It helps understanding if you work with the computer code.
- You will use MATLAB in later courses.
- When you see ODE after this semester, numerical solutions are likely to play an important role.

### For math/MATLAB help

- Professor’s office hour is your first option. We like helping, especially early. 🧑🏫
- Ask questions in class. ❓
- If you don’t understand why we cover something,
*ask*. It’s all there for a reason.

### For errors in materials 😕

**Contact the coordinator!** There are dozens of links, assignments, and due dates in Canvas. There are bound to be mistakes. Help me fix them .

### We want you to succeed!

Good luck this semester! 😄