Basics
Goldman Sachs loses profit after hits from GreenSky, real estate
Second-quarter profit fell 58% to $1.22 billion, or $3.08 a share, due to steep declines in trading and investment banking and losses related to...
Fundamental Counting Principle
We will introduce the fundamental counting principle with an example. This counting principle is all about choices we might make given many possibilities.
Multiplication principle
Suppose...
A generalized Cauchy-Schwarz inequality via the Gibbs variational formula
Let be a non-empty finite set. If is a random variable taking values in , the Shannon entropy of ...
The Battlestar Galactica Theory of Math Education – Math with Bad Drawings
Last month, as I read Christopher J. Phillips’ brief and engrossing The New Math: A Political History, I found myself reciting the ominous line...
Calculus: Discontinuity and Limits – IntoMath
A function can be continuous or discontinuous. There are different types of discontinuities that we will go over here. We will also show you...
How To Be Prepared To Face It And Survive
What is the SAT math test? How to ace it
The SAT is a standardized, comprehensive assessment that colleges and other institutions of higher education use...
Talks at the JMM
Earlier this year, I gave a series of lectures at the Joint Mathematics Meetings at San Francisco. I am uploading here the slides...
A riddle about jigsaw puzzles. – Math with Bad Drawings
As my four-year-old gets more and more into jigsaw puzzles, my role as father has narrowed to a single, satisfying, Zen-like task:
Sorting edge pieces...
Intersecting Lines | What Are Intersecting Lines?
Two lines that cross each other at a particular point are
called intersecting lines. The point where two lines cross is called the point
of intersection. Definition...