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Description
Trigonometric DelightsA fun, entertaining exploration of the ideas and people behind the growth of trigonometry. Trigonometry has a reputation as a dry, difficult branch of mathematics, a glorified form of geometry complicated by tedious computation. In Trigonometric Delights, Eli Maor dispels this view. Rejecting the usual descriptions of sine, cosine, and their trigonometric relatives, he brings the subject to life in a compelling blend of history, biography, and
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.0 ★★★★★
Based on 2037 reviews
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Product Reviews
★★★★★ 5
One of my favorite jewelry purchases!!!
Received it today and it’s BEAUTIFUL! I’m already wearing it. This will be my go to necklace. Love Love Love it!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 11, 2026
★★★★★ 5
Love it and appreciate them
Love the necklace - special present from my husband after our baby was born. It was reasonably inexpensive but you wouldn’t be able to tell that when you see it. Mine broke after a month which is not normal. I emailed not expecting a response back….. I not only got a response but they offered to replace mine. Very happy I can wear it again!
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Reviewed in the United States on August 12, 2023
★★★★★ 5
Adorable. Good quality
very cute. I wear it with everything
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Reviewed in the United States on April 7, 2025
★★★★★ 5
Repeat Customer
I absolutely love this necklace. I ordered one for myself and then ordered several more for friends and family. The 16” is a great choice because there’s an option to make it longer. The product is exactly as pictured. It also ships very quickly. Excellent value for custom jewelry.
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Reviewed in the United States on November 10, 2024
★★★★★ 5
Looks great and beautiful shine
This is a beautiful piece I love it
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Reviewed in the United States on March 18, 2026
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