Friday Random 10 (late)
Posted in Friday Random 10 on February 18th, 2007 No Comments »
Sorry I missed Friday’s Random 10. That makes this, technically, a Monday Random 10 but we’ll overlook it this once. [...]
Archive for February 18th, 2007
Calculus IV: Directional Derivatives
Posted in Calculus IV, Classes on February 18th, 2007 1 Comment »
We finished the concept of directional derivatives, introducing the notation for the gradient of a function of several variables. We proved the formula of the maximum value of the directional derivative, as well as the direction for which it is maximized.
Intermediate Analysis: Supremums and Infimums
Posted in Classes, Intermediate Analysis on February 18th, 2007 No Comments »
Thursday morning, three students presented homework problems at the board. I followed this with a lecture introducing the concepts of supremum and infimum of a set. Because I got a little sidetracked, I did not quite make it to the Completeness Axiom.
Linear Algebra: Polynomial Interpolation
Posted in Classes, Linear Algebra on February 18th, 2007 2 Comments »
Today, in class, I answered some homework questions from Section 1.4, including the following problems: [...]
Mistakes
Posted in Nonsense on February 18th, 2007 No Comments »
Mistakes: Your life . . .