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Description
Elementary Mathematics from an Advanced Standpoint: Geometry"Nothing comparable to it." Mathematics Teacher. This comprehensive three part treatment begins with a consideration of the simplest geometric manifolds: line segment, area, and volume as relative magnitudes; the Grassmann determinant principle for the plane and the Grassmann principle for space; classification of the elementary configurations of space according to their behavior under transformation of rectangular coordinates; and derivative
"Nothing comparable to it." -- Mathematics Teacher. This comprehensive three-part treatment begins with a consideration of the simplest geometric manifolds: line-segment, area, and volume as relative magnitudes; the Grassmann determinant principle for the plane and the Grassmann principle for space; classification of the elementary configurations of space according to their behavior under transformation of rectangular coordinates; and derivative manifolds. The second section, on geometric transformations, examines affine and projective transformations; higher point transformations; transformations with change of space element; and the theory of the imaginary. The text concludes with a systematic discussion of geometry and its foundations. 1939 edition. 141 figures.Binding Type: Paperback
Publisher: Dover Publications
Published: 06/18/2004
ISBN: 9780486434810
Pages: 214
Weight: 0.55lbs
Size: 8.44h x 5.38w x 0.49d
Review Citations: Scitech Book News 12/01/2004 pg. 42
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★★★★★ 5
Great fetch toy
Color: Multicolor B, Size: 2.5"(Medium)-6 Pack
My German Shepherd LOVES these. The size, squeak, & quality is the Perfect fetch ball. I use a blue ball throwing launcher and they work Great together. Will be buying more of these
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Reviewed in the United States on May 31, 2026
★★★★★ 5
If you have dogs that like to play fetch, these are a must have!
Color: Orange - Pink, Size: 2.0"(Small)-4 Pack
My pups love these sp much, they won't play with any balls other than these. Not sure if it's the small size, or the fact that they squeek, but they def were a hit.
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Reviewed in the United States on May 12, 2026
★★★★★ 5
Fun balls for a small doggie
Our little Cockapoo loves these balls. When she can’t entice us to play, she has figured out how to bounce and chase a ball by herself - very cute!
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Reviewed in the United States on April 7, 2026
★★★★★ 5
Great for my aggressive chewers
Size: 1 Count (Pack of 1), Size: 1 Count (Pack of 1)
Wears my Labs out. Fred the yellow lab chooses this pig ear over all his nyla and natural chews out of the toy box all the time. This is the 4th one in his 6 years. They have lasted long and when new are large enough I don’t have to worry about choking. As they get down in size I throw them just as a precaution. The only con I can think of is Fred loves to slam it down on the pergola floor which makes for a very loud clacky sound and it scares the $%^ out of me. He of course thinks it’s funny so he picks it up and continues to do it. As long as he and his brother Willie can chew I will always have these in their toy box.
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Reviewed in the United States on March 14, 2024
★★★★★ 5
Good for strong chewers
Size: 1 Count (Pack of 1)
Great chew for for my GSDs! They last quite a while too.
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Reviewed in the United States on July 4, 2025