SKU: 64906690751

Trigonometric Delights

Sale price$14.50 Regular price$16.11
Save 10%

Pay in installments of $4.03 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 16 - Jul 21

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Trigonometric DelightsTrigonometry has always been an underappreciated branch of mathematics. It has a reputation as a dry and difficult subject, a glorified form of geometry complicated by tedious computation. In this book, Eli Maor draws on his remarkable talents as a guide to the world of numbers to dispel that view. Rejecting the usual arid descriptions of sine, cosine, and their trigonometric relatives, he brings the subject to life in a compelling blend of history,

Trigonometry has always been an underappreciated branch of mathematics. It has a reputation as a dry and difficult subject, a glorified form of geometry complicated by tedious computation. In this book, Eli Maor draws on his remarkable talents as a guide to the world of numbers to dispel that view. Rejecting the usual arid descriptions of sine, cosine, and their trigonometric relatives, he brings the subject to life in a compelling blend of history, biography, and mathematics. He presents both a survey of the main elements of trigonometry and a unique account of its vital contribution to science and social development. Woven together in a tapestry of entertaining stories, scientific curiosities, and educational insights, the book more than lives up to the title Trigonometric Delights.
?


Maor, whose previous books have demystified the concept of infinity and the unusual number e, begins by examining the proto-trigonometry of the Egyptian pyramid builders. He shows how Greek astronomers developed the first true trigonometry. He traces the slow emergence of modern, analytical trigonometry, recounting its colorful origins in Renaissance Europe's quest for more accurate artillery, more precise clocks, and more pleasing musical instruments. Along the way, we see trigonometry at work in, for example, the struggle of the famous mapmaker Gerardus Mercator to represent the curved earth on a flat sheet of paper; we see how M. C. Escher used geometric progressions in his art; and we learn how the toy Spirograph uses epicycles and hypocycles.


Maor also sketches the lives of some of the intriguing figures who have shaped four thousand years of trigonometric history. We meet, for instance, the Renaissance scholar Regiomontanus, who is rumored to have been poisoned for insulting a colleague, and Maria Agnesi, an eighteenth-century Italian genius who gave up mathematics to work with the poor--but not before she investigated a special curve that, due to mistranslation, bears the unfortunate name the witch of Agnesi. The book is richly illustrated, including rare prints from the author's own collection. Trigonometric Delights will change forever our view of a once dreaded subject.



Binding Type: Paperback
Publisher: Princeton University Press
Published: 02/24/2013
ISBN: 9780691158204
Pages: 236
Weight: 0.79lbs
Size: 9.26h x 6.34w x 0.66d
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 64906690751

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.9 ★★★★★
Based on 20 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
coffeeandcode
Pawtucket, US
★★★★★ 4
Awesome, portable room divider for larger rooms
Color: Black, Color: Black
I chose this room divider to use in my son's room that also serves as my home office! It is 72" x 72" in size, so it truly blocks out the other side of the room for optimal privacy. Once it's assembled, it's mildly sturdy - as long as you can bet both ends with the "feet" in line with the ground. I wish that the framework poles had more of an interlocking system so that the divider was easier to erect. I assembled this on carpet, so I had some issues getting the divider to stop moving. It takes a lot of work to set up, as it is massive, so definitely have someone help you. I would suggest adding weights of some sort to the feet of this divider to keep it from shifting. I ended up leaning mine against a bookcase shelf so it wouldn't lean. All and all, this is a great product if you are looking to make a room multipurpose.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 2, 2025
J
Verified Purchase
John Grey
Natrona Heights, US
★★★★★ 5
As described
Color: Black
Light weight, easy to put together and you can disconnect the ends and just roll the whole thing nice and tight for quick out of the way storage. Pretty sturdy, doesn't fall over if you bump into it, you could use it outside but if there's a lot of light you can see through a tiny bit if you're really close but I only tested this indoors so not sure about patio types
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 18, 2025
A
Verified Purchase
Amyth4
Grantham, US
★★★★★ 2
Flimsy - choose something else
Color: Black
Very flimsy and barely stands up… better options out there.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 11, 2025
M
Verified Purchase
Marina Campbell
Cuba, US
★★★★★ 5
Nutritious, Flavorful, and Convenient for My Little Explorer!
Flavor Name: World Explorers Variety Pack, Size: 3.5 Ounce (Pack of 18)
I recently purchased the Serenity Kids 7+ Months World Explorers Baby Food Pouches Starter Pack for my 10 month-old son, and it’s been a fantastic addition to our on-the-go feeding routine! This pack includes six 3.5-ounce BPA-free pouches featuring globally inspired flavors like Free Range Chicken Tikka Masala, Grass Fed Beef Chimichurri, and Wild Caught Salmon Teriyaki, which introduce bold, savory tastes to my son’s palate. As a parent prioritizing clean, organic ingredients, I love that these pouches are made with ethically sourced, regeneratively farmed meats and USDA-certified organic vegetables, herbs, and spices, with no added sugars, artificial flavors, or preservatives. Each pouch delivers 5g of protein and 5g of healthy fats, mimicking the macronutrient profile of breast milk, which is perfect for supporting my son’s growth during this critical “flavor window” (4-18 months) when taste preferences develop. The convenience of these pouches is a game-changer for busy days. They’re shelf-stable, so I can toss them into our diaper bag for outings without worrying about refrigeration, and the smooth puree texture is ideal for my son, who’s transitioning to solids. He absolutely loves the Chicken Mexican Stew and Beef Kebab flavors, devouring them straight from the pouch in minutes! The variety of international recipes not only makes mealtime exciting but also helps expose him to diverse flavors, which I hope will prevent picky eating down the road. I also appreciate Serenity Kids’ commitment to quality, with Clean Label Project Purity Award certification and third-party testing for over 200 contaminants, giving me peace of mind about safety. One minor suggestion would be to include a slightly larger pouch size for hungrier babies, as my son sometimes wants more than the 3.5 ounces. Additionally, while the flavors are well-balanced, the ginger in the Beef Kebab can be a touch strong for some babies, though my son didn’t mind. These are small nitpicks, as the pouches are otherwise perfect for our needs. I highly recommend the Serenity Kids World Explorers Starter Pack to parents looking for healthy, convenient, and flavorful baby food that supports both nutrition and palate development. It’s a premium product that’s worth every penny for busy families who want the best for their little ones!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 3, 2025
C
Verified Purchase
Carr
Belleville, US
★★★★★ 5
Great taste, good variety.
Flavor Name: World Explorers Variety Pack, Size: 3.5 Ounce (Pack of 18)
My kiddo loves these. Her favorite one is the Mexican Chicken Stew. If I can't get her to eat because she has teeth coming in, I can always get her to eat one of these. I keep them in the fridge so that they are cold and she likes them better cold. They are a little pricey but the flavors are delicious and she eats finishes them in a few minutes. I also use them for on the go if we are going to be running errands or going to the park I can just open one and she is good to go.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026

recommand products