Tag Archives: Matt Henderson

Fast Formulas #4: Geometric Series (One of the Tricks)

Posted on October 18, 2012 by Win Smith

In Fast Formulas #3: Pool Average Life with CPR Prepayments, I presented Formula 3.1, a shortcut calculation for the average life of a loan pool under a constant prepayment assumption.  I mentioned that Formula 3.1 was derived by using “a … Continue reading →

Posted in Fast Formulas, Math | Tagged , , , , | 5 Comments

A New(?) Way to Visualize Numbers

Posted on October 1, 2012 by Win Smith

After I saw Matt Henderson’s visual demonstration of how the geometric series 1/4 + 1/16 + 1/64 . . . adds to 1/3, I thought about how to generalize this for any geometric series. This led to a way to … Continue reading →

Posted in Fun, Graphic Presentation, Math, Visualization | Tagged , , , , , | Leave a comment

A Cool Math Blog

Posted on September 27, 2012 by Win Smith

Matt Henderson of Cambridge (UK) has a terrific math blog that is full of very cool animations. Here is an example, showing that the infinite geometric series 1/4 + 1/16 + 1/64 + … adds to 1/3: His latest post … Continue reading →

Posted in Fun, Graphic Presentation, Math | Tagged , , , | 2 Comments