Natural Blogarithms

After a conversation with a colleague yesterday, I started doing some serious thinking.  In the several semesters that I have taught Trigonometry, which I think totals about 5 or 6 times, I have been using our adopted textbook which takes the unit circle approach to introduce students to trigonometric functions.  In other words, the functions [...]

During Calculus a few days ago, I covered an interesting little number called Champernowne’s Constant. We were in the middle of introducing the concept of infinite sequences of numbers and their convergence. We stated the theorem that states than any monotone, bounded sequence must converge. After review mathematical induction and proving the convergence [...]

Since I am now on a roll with these “wonderful” capsules of hilarity, try a few more that tickled my funny bone. By the way, most of these are not that funny, but just plain sad. And yes, the title of this entry should probably read, “Worse Math Humor.”

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I laughed out loud for 15 minutes when I read this one.

Click here if you don’t get it.
HT: CastingOutNines

One day, Jesus said to his disciples: “The Kingdom of Heaven is like 3x squared plus 8x minus 9.”
A man who had just joined the disciples looked very confused and asked Peter: “What, on Earth, does he mean by that?”
Peter replied: “Don’t worry – it’s just another one of his parabolas.”
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Theorem. Every positive integer is [...]

During a lecture last week, I made use of the latin abbreviations, “i.e.” and “e.g.”, and while I know the correct usage of these I wanted to give them the Latin phrases that they abbreviated. My brain turned off at the moment and I couldn’t recall. Well, here they are.
The Latin abbreviation i.e., [...]

In doing do preparatory reading for classes next term, I stumbled across this little interestingly named gem of a theorem. It is one that is frequently used in combinatorial analysis. It will also come in handy in our introductory Analysis class.
The reason for its name is that it can be used [...]

As a result of a question asked about the history of the word “coefficient” I did a little personal research. Actually, I think I asked the question of myself in Intermediate Algebra and realized I didn’t know. Well, now I do.
From http://www.pballew.net/arithme9.html
Coefficient: A coefficient is a number, or variable, that is multiplies a [...]

[This entry is cross-posted on this blog and on Zone Defense]
This morning in Sunday School, a quote stood out to me and I wanted to pass it along. I didn’t find it online so this is a quote that was attributed to D.L. Moody Charles Spurgeon, and it may be a slight paraphrase as [...]

I was posed with the question today of how secant lines are related to the secant function. Equivalently, it lead to the question of how tangent lines are related to the tangent function. I vaguely recalled seeing them illustrated with the unit circle but was unable to recall the exact relationship. After [...]