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How Tartaglia Solved the Cubic Equation

Tartaglia's method for solving cubics, which he eventually explained to Cardano.

8th Grade Education in 1895

What it took to get an 8th grade education in 1895

Who's That Mathematician? Images from the Paul R. Halmos Photograph Collection

Page 12: Dilworth to Doob

The Greate Invention of Algebra

Jacqueline Stedall has uncovered the numerous algebraic ideas of Thomas Harriot from the early 17th century and has organized them into a readable treatise.

Pacioli's Summa

This is the title page of the Summa de arithmetica, geometrica, proportioni et proportionalita, published by Luca Pacioli in 1494. This was the most comprehensive mathematical text of the time and one of the earliest printed mathematical works. It contained not only practical arithmetic, but also algebra, practical geometry and the first published treatment of double-entry bookkeeping.

A History of Analysis

A superb collection of articles by experts on various areas of the history of analysis, from the Greeks to modern times.

Reverse the Digits

The sum of the two digits of a 2-digit number is 9. If 45 is subtracted from the number, the result will be expressed by the digits in reverse order. Find the number.

Multicultural Classroom Posters Sets 3 & 4

These posters illustrate aspects of the history of mathematics in countries from Babylonia to Ireland.

Silver and Gold

There are two piles, one containing 9 gold coins, the other 11 silver coins.

Storm's a' Brewin'

What is the perpendicular height of a cloud when its angles of elevation were 35 degrees and 64 degrees as taken by two observers?