Math 121: Linear Algebra and Applications Course Taught by Elden Elmanto Notes Taken by Forrest Flesher Fall 2019 Welcome to Math 121: Linear Algebra and Applications. I’m Forrest, your course assistant for the semester. Some important information: • The course webpage is: https://scholar.harvard.edu/elden/classes/math-121-fall-2019 • Office hour times, course times and more information is located in the syllabus, which is at: https://scholar.harvard.edu/files/elden/files/syllabus-121_fall_2019-final. pdf Office hours are at the following times in Science Center 231: – Sundays: 2:00-3:00 pm – Thursdays: 2:00-3:00 pm • I will hold two office hours per week. The first Friday office hour willbean interactive LaTeX introduction session. My office hours are at the following times: – Mondays: 8:00-10:00 pm, Leverett Dining hall – Fridays: 3:00-4:15 pm, Science Center 309A • The text for the course is Axler’s “Linear Algebra Done Right.” • I will by typing up notes in class, since there will be times when the course deviates from the book. • My email is
[email protected]. Email with any questions, comments, or concerns, especially if you find a mistake in these notes. • We will use the Canvas site for submitting/grading problem sets. • For submitting your problem sets, please use LATEX. This is strongly encouraged for the first few psets, and required after the fifth pset. If you are newtexand need help getting started, come to office hours. I’d recommend using overleaf: https://www.overleaf.com 1 Math 121: Linear Algebra and Applications Fall 2019 Contents 1 September 3, 2019 4 1.1 Introduction ....................................