Find a number having remainder 29 when divided by 30 and remainder 3 when divided by 4.

Individual problems from throughout mathematics history, as well as articles that include problem sets for students.

Find a number having remainder 29 when divided by 30 and remainder 3 when divided by 4.

If in a circle ABDC, circumscribe an equilateral triangle ABC; the straight line AD is equal to the sum of the two straight lines BD and DC: required a demonstration.

The authors recount the 'great tale' of Napier's and Burgi's parallel development of logarithms and urge you to use it in class.

A cat sitting on a wall 4 cubits high saw a rat prowling 8 cubits from the foot of the wall;

Three people buy wood together. One pays the merchant 5 coins, another 3 coins, and the last 2 coins.

A square circumscribed about a given circle is double in area to a square inscribed in the same circle. True of false? Prove your answer.

Discussion of 15th century French manuscript, with translation of its problems, including one with negative solutions

Given a guest on horseback rides 300 li in a day. The guest leaves his clothes behind. The host discovers them after 1/3 day, and he starts out with the clothes.

Find two numbers such that multiplying one by the other makes 8 and the sum of their squares is 27.

A bridge is built across a river in 6 months by 45 men. It is washed away by the current. Required the number of workmen sufficient to build another of twice as much worth in 4 months.