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7y
Rare Book of the Month: The First Six Books of the Elements of Euclid, by Oliver Byrne (1847)
ZSR | Rare Book of the Month: The First Six Books of the Elements of Euclid, by Oliver Byrne (1847) – Special Collections & Archives Blog
Pythagoras - Wikipedia
Medieval woodcut showing Pythagoras with bells and other instruments in Pythagorean tuning
Sir Isaac Newton's handwritten notes about momentous discovery of laws of motion and gravity now available online
Sir Issac Newton's handwritten description of the curve of a mathematical function.
Decimals, Holes & Dots in the History of Mathematics
Simon Stevin (1548-1620) introduced the idea of decimal numbers in his 36-page De Thiende ('The Art of Tenths"1) in 1585, an idea that replaced much more cumbersome earlier methods of representation. So, the number 3.14159 would be written in the Stevein notation as (where in this case numbers enclosed by brackets, i.e. "[9]" would have been represented in print as a 9 within a circle) 3[0]1[1]4[2]1[3]5[4]9[5].
Image from http://www.math.wichita.edu/history/Images/chinese-carey.gif.
What is the origin of numbers?
Modern numerals were developed by Arabic Muslim scientists who revised the Indian version of numbers that contains only nine numbers. That took place during the 8th century (771 A.D). There were different forms in the Indian version of numbers, Arabs kept some of these forms and changed others to create their own vision of numbers which was used in the Middle East and mainly in Baghdad. Europe then adopted these numbers because of their practicality in comparison with Roman numbers.
Number Stories of Long Ago | Homeschool Freebie of the Day
free ebook of this math stories from long ago It is wonderful blend of history, economics, and mathematics that will really be enjoyed by upper elementary and high school students who are curious about the origins of the civilization we take for granted today.