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Convergence articles

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A report on an Australian teacher's use of material from the Rhind Papyrus.
A letter to Sam Greitzer, late editor of Arbelos, discussing the derivation of two formulas for calculating pi.

Our reviewer praises the selection of excerpts, the use of facsimiles rather than transcriptions, and the commentary and English translation in this collection.

A great book from which to learn and teach the subject of relativity.

The Arithmetic of Boethius (480-524) dates from the early sixth century. This page is from a mansucript (Plimpton MS 165) that dates from approximately 1294, written on vellum.

The steamer, Katie, leaves the wharf at New Orleans and runs an average speed of 15 mph. When Katie had gone 25 miles, the steamer R.E. Lee leaves the wharf and runs the average speed of 18 mph. How far will the Lee go before she overtakes the Katie?

A man and his wife drink a barrel of wine at different rates.

A merchant gave a university 2,814 ducats on the understanding that he was to be paid back 618 ducats per year for 9 years, at the end of which the 2,814 ducats should be considered as paid.

Two travelers, starting at the same time from the same point, travel in opposite directions round a circular railway.

Wanting to know the breadth of a river, I measured a base of 500 yards in a straight line close by one side of it.