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Description
Differential EquationsBased on his extensive experience as an educator, F. G. Tricomi wrote this practical and concise teaching text to offer a clear idea of the problems and methods of the theory of differential equations. The treatment is geared toward advanced undergraduates and graduate students and addresses only questions that can be resolved with rigor and simplicity. Starting with a consideration of the existence and uniqueness theorem, the text advances to the
Based on his extensive experience as an educator, F. G. Tricomi wrote this practical and concise teaching text to offer a clear idea of the problems and methods of the theory of differential equations. The treatment is geared toward advanced undergraduates and graduate students and addresses only questions that can be resolved with rigor and simplicity.Starting with a consideration of the existence and uniqueness theorem, the text advances to the behavior of the characteristics of a first-order equation, boundary problems for second-order linear equations, asymptotic methods, and differential equations in the complex field. The author discusses only ordinary differential equations, excluding coverage of the methods of integration and stressing the importance of reading the properties of the integrals directly from the equations. An extensive bibliography and helpful indexes conclude the text.
Binding Type: Paperback
Publisher: Dover Publications
Published: 06/13/2012
ISBN: 9780486488196
Pages: 273
Weight: 0.80lbs
Size: 9.10h x 6.10w x 0.70d
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★★★★★ 5
Great keyboard for my mother.
Color: Off White, Style: Battery Powered, Pattern Name: Keyboard, Color: Off White, Style: Battery Powered, Pattern Name: Keyboard
I wanted to move my mother away from corded keyboards so I gave her my old mouse and this keyboard. Functions well with a Linux machine although you have to pair any mice with it on a Windows or Mac computer. It's quite responsive and connects well. A valuable purchase that has survived some falls now. Very durable as long as you're not purposely trying to break it.
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Reviewed in the United States on December 30, 2025
★★★★★ 4
Good quality keyboard
Color: Graphite, Style: Battery Powered, Pattern Name: Keyboard
The Logitech Slim K950 Wireless Keyboard works great as a replacement for my old Logitech USB keyboard, but it's not perfect:
Pros: Logitech is a good brand that lasts a long time, very easy to connect via Bluetooth (ready to use in minutes) but also comes with a USB to connect manually; runs on two AAA batteries (have not had to replace yet in over a month); Slim profile with low-profile keys; no problems with the functions on the keyboard so far; it's a regular width keyboard with convenient number pad.
Cons: It is a bit pricey compared to some other Bluetooth keyboards; the volume keys are above the backspace bar and sometimes I hit those instead of backspace; the main issue for me is that it is supposed to have keys that are "quiet typing" - I don't like "clicky" keyboards and this one still clicks if I am typing fast or pressing hard. Not as much as other non-silent keyboards, but enough that I notice. That said, I tried a couple different "silent" keyboards and they really were not that much different, so maybe it's just me!
Overall this is a good keyboard and I would purchase Logitech again.
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Reviewed in the United States on October 2, 2025
★★★★★ 5
Amazing
Color: Graphite, Style: Battery Powered, Pattern Name: Keyboard
This is a very good product. I have had mine about two years now and I will buy another one should this one start to wear down.
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Reviewed in the United States on April 9, 2026
★★★★★ 5
Super quiet and slim keyboard
Color: Off White, Style: Battery Powered, Pattern Name: Keyboard
This keyboard is slim, stylish and super quiet! Very easy to set up and use right away without any problems. Seems very durable and I’m sure the battery life could be extended if I turned off the battery after using it but after a month of using it I have not had any issues. I bought the mouse that was recommended to go with it as well. Overall a great purchase.
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Reviewed in the United States on April 12, 2026
★★★★★ 5
Perfect
Color: Off White, Style: Battery Powered, Pattern Name: Keyboard
Loved it! Slim, delicate - perfect.
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Reviewed in the United States on May 13, 2026