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Description
Pascal's Arithmetical Triangle: The Story of a Mathematical Idea"An impressive culmination of meticulous research into original sources, this definitive study constitutes the first full length history of the Arithmetic Triangle." Mathematics of Computation Pascal's Arithmetical Triangle was named for the seventeenth century French philosopher mathematician Blaise Pascal, though he did not invent it. A never ending equilateral triangle of numbers that follow the rule of adding the two numbers above to get the
"An impressive culmination of meticulous research into original sources, this definitive study constitutes the first full-length history of the Arithmetic Triangle." -- Mathematics of Computation Pascal's Arithmetical Triangle was named for the seventeenth-century French philosopher/mathematician Blaise Pascal, though he did not invent it. A never-ending equilateral triangle of numbers that follow the rule of adding the two numbers above to get the number below, it appears much earlier in the literature of Hindu and Arabic mathematics and continues to fascinate Western mathematicians. Two sides are comprised of "all 1s," and because the triangle is infinite, there is no "bottom side." This book by A. W. F. Edwards, Professor of Biometry at the University of Cambridge, explores Pascal's Arithmetical Triangle and the way it has been studied, enjoyed, and used by mathematicians throughout history. "A fascinating book...giving new insights into the early history of probability theory and combinatorics and incidentally providing much stimulating material for teachers of mathematics." -- G. A. Bernard, International Statistical Institute Review "Scrupulously researched . . . carries the reader along in a rewarding manner. It is a scientific who-dun-it and one must admire the author for the scholarly yet unpedantic manner in which he disperses some of the mists of antiquity." -- A. W. Kemp, Biometrics "Recommended not only to historians and mathematicians, but also to students seeking to put some life into the dry treatment of these topics to which they have doubtless been subjected." -- Ivor Grattan-Guinness, Annals of ScienceBinding Type: Paperback
Publisher: Dover Publications
Published: 06/12/2019
ISBN: 9780486832791
Pages: 224
Weight: 0.70lbs
Size: 8.90h x 5.90w x 0.50d
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4.2 ★★★★★
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Product Reviews
★★★★★ 5
Fun for our puppies
Color: brown1
Fun tug of war toy for our heeler pups. They haven't destroyed it yet but time will tell. Cute, and easy to take with us to the park.
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Reviewed in the United States on June 10, 2026
★★★★★ 4
Dog toy for heavy chewers
Color: brown1
This is pretty durable. My puppy chews up most stuffed toys. This one is still mostly intact. It’s missing one ear and the tail but the way it was sewn it’s still very usable. It’s one of his favorite toys
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Reviewed in the United States on January 7, 2026
★★★★★ 5
Great dog toy! Good quality!
Color: brown1
Great quality dog toy! The rope is thick and not easy to break. Fun toy for my medium-sized dog who loves to tug-of-war with me.
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Reviewed in the United States on December 30, 2025
★★★★★ 3
For small dog
Color: brown4, Color: brown4
It's cute for the price, but it's meant for small dogs, it's very easy for medium-sized dogs to destroy.
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Reviewed in the United States on March 10, 2026
★★★★★ 5
Small Pug Enjoyment For All!
Color: brown1, Color: brown1
We got this toy to replace an earlier purchase for a rope/squeak toy after finding he loved a holiday purchase by an Aunt which squeaked but was not really meant for tugging/heavy playing like he wanted too, for our half pug/schnauzer Mr. Pug. Compared to the first toy and the attempted replacement he ADORES this toy! As you can see in the above picture he has truly laid his claim to it!
About the product in general though, we found it surprisingly sturdy all around, even with heavy tugging and aggressive play. The interior padding is durable it seems, and holes where the rope come out have a heavy duty padding for the target dog audience like ours in preventing him from chewing or tearing it up. The crinkly ears were also an enjoyable surprise for him, and the squeaker can move around the torso area of the toy keeping him actively looking for it when he desires it.
All in all we would certainly get another toy like this in the future.
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Reviewed in the United States on January 25, 2025
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