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Description
Practical Conic Sections: The Geometric Properties of Ellipses, Parabolas and HyperbolasIllustrated with interesting examples from everyday life, this text shows how to create ellipses, parabolas, and hyperbolas and presents fascinating historical background on their ancient origins. The text starts with a discussion of techniques for generating the conic curves, showing how to create accurate depictions of large or small conic curves and describing their reflective properties, from light in telescopes to sound in microphones and
Illustrated with interesting examples from everyday life, this text shows how to create ellipses, parabolas, and hyperbolas and presents fascinating historical background on their ancient origins. The text starts with a discussion of techniques for generating the conic curves, showing how to create accurate depictions of large or small conic curves and describing their reflective properties, from light in telescopes to sound in microphones and amplifiers. It further defines the role of curves in the construction of auditoriums, antennas, lamps, and numerous other design applications. Only a basic knowledge of plane geometry needed; suitable for undergraduate courses. 1993 edition. 98 figures.Binding Type: Paperback
Publisher: Dover Publications
Published: 10/18/2010
ISBN: 9780486428765
Pages: 112
Weight: 0.47lbs
Size: 9.02h x 6.56w x 0.32d
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4.6 ★★★★★
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Product Reviews
★★★★★ 5
Affordability while being affordable
It works well, even better than $400 priced my previous TB4 hub at such a descent price.
Even if I have some issues when I connect this to more than three usb devices at once, but the price of this item justifies its functionality as good as useful.
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Works well
Sometimes gets a little warm, but otherwise excellent. First USB-C (10gb) hub I've had that regularly handles 3 USB C drives without issue.
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Reviewed in the United States on May 5, 2026
★★★★★ 5
Works with Viture XR Pro glasses!
So it is rare that I post about a product the same day that I got it but this USB-C hub did exactly what I wanted it to do!
A little background, I recently got a pair of Viture XR Pro glasses and I am using them with a Samsung Galaxy S23 5G which has the benefit of Samsung DeX. The goal was to be able to use USB-A dongles for wireless keyboard and mouse in addition to charging my phone with a power delivery port and using my glasses.
Long story short, it works flawlessly and I still have 1 USB-A and 3 USB-C ports to use!
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Reviewed in the United States on March 20, 2026
★★★★★ 5
It Works for what I need.
I use the Hub as 192 Gb usb-c hub for 3 flash 64 gig F-Drives. Works great !
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Reviewed in the United States on April 30, 2026
★★★★★ 4
Works well. Compact.
Works well. I have a camera monitor and my MacBook Air attached to it. I wish the cable were longer so I could push it all to the back of my desk. The cable is about 6 inches.
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Reviewed in the United States on February 14, 2026
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