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After a terrible battle it is found that 70% of the soldiers have lost an eye.

What is the sum of the reciprocals of the triangular numbers?

Images of the first printed edition of Euclid's Elements


My age is a number consisting of two digits, 1/7 of this number is a mean proportional between these two digits, and two years hence, my age will be a third proportional to the same two digits, directly as they stand in my present age.

A new history of mathematics in ancient Mesopotamia, concentrating on its social aspects.

There is a fish whose body weighs 8 ounces. How much does the whole fish weigh?

Suppose the area of an equilateral triangle be 600. The sides are required.

Given a triangular piece of land having two sides 10 yards in length and its base 12 yards, what is the largest square that can be constructed within this piece of land so that one of its sides lies along the base of the triangle?

A history of algebra from its early beginnings to the twentieth century.

A leech invited a slug for a lunch a leuca away.