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Convergence articles

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If a ladder, placed 8 ft. from the base of a building 40 ft. high, just reached the top, how far must it be placed from the base of the building that it may reach a point 10 ft. from the top?
This is the opening page of the section of the geometrical work of Oronce Fine (1494-1555) dealing with Euclid's work on circles. This is part of Fine's major work entitled Protomathesis, which covered arithmetic, astronomy and astronomical instruments, as well as geometry.
Posters illustrating mathematics concepts in such places as China, Japan, India, and the Americas.
Find two numbers, x and y, such that their sum is 10 and x/y + y/x = 25
The author became fascinated with the mysterious role of √-1 in electronics. Turning to history for insight, he brings the perspectives of both a practical man and a scholar in conveying the enchantment of mathematics for a non-mathematician.
In how many ways can a vowel and a consonant be chosen out of the word "logarithms?"
Considering non-unique representation of Maya calendar numbers may help your students understand their own number system better.
In a right triangle, let the perpendicular be 5 and the sum of the base and hypotenuse 25. Find the lengths of the base and hypotenuse
This is the title page of the Nova Scientia (1537) of Niccolo Tartaglia (1499-1557). In this work, Tartaglia discussed the mathematics of artillery and developed methods for determining the range of a cannon.

The "rood", a linear measure dating from many centuries ago, is calculated anew in today's classrooms.

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