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Browse Classroom Capsules and Notes

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Displaying 1081 - 1090 of 1209

The number of distinct bridge auctions is calculated.
A weighted arithmetic/geometric mean inequality is proved.

Elementary examples from college algebra illustrate the idea of involutions.

Elementary examples, specifically Pythagorean triangles, illustrate the idea of involutions.
A new way to derive infinite series expressions for \(\ln 2\) and \(\ln 3\)

The author illustrates how certain determinants can be used to motivate students. The determinants in question have terms in artithmetic progressions.

This author discusses the efficiency of computing integrals on a calculator using Taylor series.

The author describes a convenient method for calculating determinants where all entries on a given diagonal are equal and for some more general situations.

A proof without words approach to the geometric-arithmetic mean inequality

The author uses Minkowski sums to estimate the length of the perimeter of an ellipse.