Tag Archives: logarithms

Birthday pairings

Posted on April 30, 2010 by nolfonzo

Here’s two classic birthday puzzles: How many people do you need in a room to have a better than 50% chance of finding at least one shared birthday among them? How many people do you need in a room with … Continue reading →

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The “Mathematical Constant” and Continuously Compouding Interest

Posted on June 8, 2008 by nolfonzo

One of the (many) aspects of the “Mathematical Constant” is that: This property makes very useful for working on compounding interest problems. How so? Let’s start with the basic time value of money formula giving the relationship between the PV … Continue reading →

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