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Archive for November 15th, 2006

Mathematical Explosions

When teaching limits of sequences, I often use the phrase that some part of the general term “blows up”. I typically use it to indicate that it is going to infinity. For example, in the statement that , I’d say that the denominator of the fraction blows up and causes the entire fraction to [...]

Where’s the other dollar?

Three guys in a hotel call room service, place an order for two large pizzas. The delivery boy brings them up with a bill for exactly $30.00. Each guy gives him a $10.00 bill, and he leaves. That’s fact! When he hands the $30.00 to the cashier, he is told a mistake was made. The [...]