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Description
The Secret FormulaCondition: BRAND NEW ISBN: 9780691183671 Format: Trade binding Year: 2020 Publisher: Princeton University Press Description: The legendary Renaissance math duel that ushered in the modern age of algebra The Secret Formula tells the story of two Renaissance mathematicians whose jealousies, intrigues, and contentious debates led to the discovery of a formula for the solution of the cubic equation. Niccolo Tartaglia was a talented and ambitious teacher
Condition: BRAND NEWISBN: 9780691183671
Format: Trade binding
Year: 2020
Publisher: Princeton University Press
Description:
The legendary Renaissance math duel that ushered in the modern age of algebra
The Secret Formula tells the story of two Renaissance mathematicians whose jealousies, intrigues, and contentious debates led to the discovery of a formula for the solution of the cubic equation. Niccolo Tartaglia was a talented and ambitious teacher who possessed a secret formula-the key to unlocking a seemingly unsolvable, two-thousand-year-old mathematical problem. He wrote it down in the form of a poem to prevent other mathematicians from stealing it. Gerolamo Cardano was a physician, gifted scholar, and notorious gambler who would not hesitate to use flattery and even trickery to learn Tartaglia's secret.
Set against the backdrop of sixteenth-century Italy, The Secret Formula provides new and compelling insights into the peculiarities of Renaissance mathematics while bringing a turbulent and culturally vibrant age to life. It was an era when mathematicians challenged each other in intellectual duels held outdoors before enthusiastic crowds. Success not only enhanced the winner's reputation, but could result in prize money and professional acclaim. After hearing of Tartaglia's spectacular victory in one such contest in Venice, Cardano invited him to Milan, determined to obtain his secret by whatever means necessary. Cardano's intrigues paid off. In 1545, he was the first to publish a general solution of the cubic equation. Tartaglia, eager to take his revenge by establishing his superiority as the most brilliant mathematician of the age, challenged Cardano to the ultimate mathematical duel.
A lively and compelling account of genius, betrayal, and all
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Product Reviews
★★★★★ 1
Didn’t last longer enough for “before” photos.
This toy lasted about 6secs period! I literally turned my back to grab my phone and when I turned around it was in about 30 pieces and I know for a fact (💩) that my dog swallowed some. Just a waste of money for me and my Labrador.
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Reviewed in the United States on June 26, 2023
★★★★★ 5
Decent product. Fun for dogs
Size: Dog Rope Toy - M
My dogs loved this toy so much that they ripped it just after a month use. So durability may be lacking a bit but my dogs loved it. The price can be less since it doesn’t last that long, it’s lightweight so it’s easy to throw, and super fun for dogs.
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Reviewed in the United States on September 6, 2025
★★★★★ 1
Cheaply made
Size: Dog Rope Toy - M
I ordered this toy for my son's dog and in about 10 minutes or less it was falling apart I now have four pieces not a good product.
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Fun tug toy that holds up well
Size: Dog Rope Toy - M
We got this rope tug toy for our dog and it’s been a hit. He loves playing tug of war and will happily drag this around the house looking for someone to play with. The rope is thick and feels like real cotton, not that super cheap stiff stuff. It has some give to it but still feels sturdy.
So far it has held up well to lots of chewing and tugging. Our dog isn’t a hardcore destroyer, but he definitely tests his toys, and this one is still in one piece. It’s also a nice size, not tiny, so it works well for medium and bigger dogs, but a smaller dog could still enjoy it.
Overall, it’s a simple toy that does what you want it to do. Keeps the dog busy, gives them something safe to chew on, and holds up better than most rope toys we’ve tried.
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Reviewed in the United States on January 3, 2026
★★★★★ 3
Red flag!!!
Size: Dog Rope Toy - M
Within an hour of giving this toy to my dog, she chewed off the plastic handle and the plastic ball. The worst part is that they came off in very small pieces, some like crumbles. This could have been a serious problem if I had not been watching her and able to take it away.
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Reviewed in the United States on May 12, 2026