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Description
Finite Difference EquationsThe calculus of finite differences is an area of mathematics important to a broad range of professions, from physical science and engineering to social sciences and statistics. This comprehensive study, directed to advanced undergraduate level students, graduate students, and professionals, concentrates primarily on how the calculus of finite differences may be used as an approximation method for solving troublesome differential equations. Stressing
The calculus of finite differences is an area of mathematics important to a broad range of professions, from physical science and engineering to social sciences and statistics. This comprehensive study, directed to advanced undergraduate-level students, graduate students, and professionals, concentrates primarily on how the calculus of finite differences may be used as an approximation method for solving troublesome differential equations.Stressing problem solving rather than pure mathematics, the authors begin with elementary difference operations, treat interpolation and extrapolation, the derivation of difference equations, solution of linear difference equations with variable and constant coefficients, and the properties of the general difference equations. Chapter 5 develops the various modes of expansion of the solutions of nonlinear equations and the conditions under which these are valid. In addition, in Chapter 6, there is the estimation of the eigenvalues that arise in connection with linear difference equations, and the investigation of the properties of the corresponding orthogonal functions in the form of factorial series. The final two chapters treat applications of difference equations, and the investigation of the properties of the corresponding orthogonal functions in the form of factorial series. The final two chapters treat applications of difference equations and difference equations associated with functions of two variables. Included are a number of exercises with answers.
Binding Type: Paperback
Publisher: Dover Publications
Published: 09/11/1992
ISBN: 9780486672601
Pages: 304
Weight: 0.70lbs
Size: 8.40h x 5.40w x 0.60d
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★★★★★ 5
You won't regret buying these pillows, they're absolutely perfect.
Size: Standard (2 Pillows + 2 Protectors), Style: Medium, Configuration: Pillows + Protectors
I absolutely love these pillows, I love the fact that they come with a cover to protect them. They're just the right amount of density to them to make them extremely comfortable. They don't flatten down and just stay flat. I've had one set of them for quite a while now and they're still just as good as the brand new ones that I bought. Eventually I will be replacing every pillow in my house with these pillows. They're very well made, The filling is just right, the size is perfect, the quality is absolutely amazing. If you buy these pillows you won't regret it, they're literally the probably the best pillows I've ever bought. And also one of the cheaper ones that I bought in price not quality. And I've never bought any of the store that come with the protective covers with them either. I do highly recommend them.
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Reviewed in the United States on February 10, 2026
★★★★★ 5
Great pillow
Size: Standard (2 Pillows + 2 Protectors), Style: Medium, Configuration: Pillows + Protectors
This pillow is great. It supports my head and is just the right softness. Love the fact that it is machine washable. Would definitely purchase it again.
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Great pillow
Size: Standard (2 Pillows + 2 Protectors), Style: Medium, Configuration: Pillows + Protectors
Very well made pillow! It doesn't go flat right away like so many other pillows do. Very comfortable as well. I would purchase again.
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Reviewed in the United States on May 20, 2026
★★★★★ 4
Would buy again
Size: Standard (2 Pillows + 2 Protectors), Style: Medium, Configuration: Pillows + Protectors
I bought these pillows with the pillow protectors included. After 15 minutes of fluffing the pillows in the dryer they took their shape and were ready to use.
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Reviewed in the United States on April 22, 2026
★★★★★ 5
Nice medium thickness. Fits in shames great. Firm for a medium but will work well
Size: Standard (2 Pillows + 2 Protectors), Style: Medium, Configuration: Pillows + Protectors
Nice pillows for the price. I got the medium thickness and it’s a little stiff, but I think once slept on, it should soften up a bit, but if you like a softer or flatter pillow, definitely go for the soft one. But the quality seems to be very well-made. It puffed up straight out of the package. It didn’t have any smell whatsoever, and it fit perfectly in my standard size shams.
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Reviewed in the United States on March 22, 2025