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Description
Calculus of VariationsThis book by Robert Weinstock was written to fill the need for a basic introduction to the calculus of variations. Simply and easily written, with an emphasis on the applications of this calculus, it has long been a standard reference of physicists, engineers, and applied mathematicians. The author begins slowly, introducing the reader to the calculus of variations, and supplying lists of essential formulae and derivations. Later chapters cover
This book by Robert Weinstock was written to fill the need for a basic introduction to the calculus of variations. Simply and easily written, with an emphasis on the applications of this calculus, it has long been a standard reference of physicists, engineers, and applied mathematicians. The author begins slowly, introducing the reader to the calculus of variations, and supplying lists of essential formulae and derivations. Later chapters cover isoperimetric problems, geometrical optics, Fermat's principle, dynamics of particles, the Sturm-Liouville eigenvalue-eigenfunction problem, the theory of elasticity, quantum mechanics, and electrostatics. Each chapter ends with a series of exercises which should prove very useful in determining whether the material in that chapter has been thoroughly grasped.The clarity of exposition makes this book easily accessible to anyone who has mastered first-year calculus with some exposure to ordinary differential equations. Physicists and engineers who find variational methods evasive at times will find this book particularly helpful.
"I regard this as a very useful book which I shall refer to frequently in the future." J. L. Synge, Bulletin of the American Mathematical Society.
Binding Type: Paperback
Publisher: Dover Publications
Published: 06/01/1974
ISBN: 9780486630694
Pages: 352
Weight: 0.82lbs
Size: 8.49h x 5.42w x 0.69d
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★★★★★ 3
Sturdy & Easy to Assemble!
Color: Black, Size: 2 in 1
Does not come assembled - you must assemble it, and once you do, it leans a little forward due to the hanging screws being on the top but on the bottom. It looks as shown, although dimensions are slightly different than indicated. It is 12" wide x 5" deep, and I bought the one that said it was 18" wide by 4" deep. It's sturdy enough to hold hair products and toiletries, or a small plant. Overall decent for price.
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Reviewed in the United States on March 18, 2026
★★★★★ 5
Muy práctico 👌
Color: Rucstic Brown, Size: 2+1 Tier Size, Color: Rucstic Brown, Size: 2+1 Tier Size
Muy práctico y fácil de armar e instalar.
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Reviewed in the United States on May 31, 2026
★★★★★ 5
love!
Color: Black, Size: 2+1 Tier Size, Color: Black, Size: 2+1 Tier Size
these floating shelves are sooo cute and i love them so much. it took a HOT minute to put them together (prob like 30-45 mins for me), but i can’t explain how happy i am to have them! i hung these once in my last apartment and re-hung again after moving, and they’re still great.
the only con is that the rail around the bottom shelf (the part “holding” the L block, plant, and white block in) is a little bent and i can’t straighten it out no matter what i do. it’s really hard to tell, but it’s not quite level with the board beneath it (pic 2). i’m just a perfectionist so it was very clear to me when putting it together haha. nobody else notices it until i point it out, and i’ve begun to overlook it too, but just a little something that i wanted to add.
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Reviewed in the United States on August 30, 2023
★★★★★ 5
Perfection in a corner!
Color: Brown, Color: Brown
They're gorgeous and easy to mount. Hands down, highly recommend. They look really high quality and feel that way, too. They fit my corners perfectly, and have a really rich color to them. I'd absolutely buy them again.
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Reviewed in the United States on September 29, 2025
★★★★★ 5
Well made and nicely finished
Color: Brown
Well constructed and nice finish. This is the second set that I have purchased and have no complaints.
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Reviewed in the United States on October 13, 2025