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Description
A First Course in Linear AlgebraA First Course in Linear Algebra is an introduction to the basic concepts of linear algebra, along with an introduction to the techniques of formal mathematics. It begins with systems of equations and matrix algebra before moving into the theory of abstract vector spaces, eigenvalues, linear transformations and matrix representations. It has numerous worked examples and exercises, along with precise statements of definitions and complete proofs of
A First Course in Linear Algebra is an introduction to the basic concepts of linear algebra, along with an introduction to the techniques of formal mathematics. It begins with systems of equations and matrix algebra before moving into the theory of abstract vector spaces, eigenvalues, linear transformations and matrix representations. It has numerous worked examples and exercises, along with precise statements of definitions and complete proofs of every theorem, making it ideal for independent study.Binding Type: Hardcover
Publisher: Congruent Press
Published: 12/05/2012
ISBN: 9780984417551
Pages: 542
Weight: 2.53lbs
Size: 10.00h x 7.00w x 1.19d
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★★★★★ 5
Love the Warm Glow!
Color: Warm White
This light is very easy to install and has 3 different lighting options. I love the warm white light it emits as opposed to a bright white light that could attract bugs at night. Perfect light for patio, deck, camping, golf cart, etc!
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Reviewed in the United States on July 14, 2025
★★★★★ 3
It feels cheap and works just okay
This product just feels like it was made on the bottom dollar. It is very cheaply made and the doors to the battery compartment are so fragile it feels like they may snap next time I have to change the batteries. There's absolutely no weather proofing so I wouldn't leave it outside in the rain or heat. That being said, it's fine. It stays put on our umbrella and puts out light, albeit not much light.
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Reviewed in the United States on April 16, 2021
★★★★★ 5
Functional and easy to install!
Color: Cool White
This umbrella light is super handy! It hinges open to allow installation around the umbrella pole, so you don’t have to remove umbrella from table to add the light. I like that it can be charged with included USB cord or can use regular batteries. The different light settings are also nice depending on how much light you need or want at the time. We’ll be using this quite often when sitting at the table by the pool this summer.
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Reviewed in the United States on July 21, 2025
★★★★★ 5
Easy to use
I love these. Not only do they work at reducing any blemish size and inflammation, they are practically invisible like advertised.
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Reviewed in the United States on April 29, 2026
★★★★★ 5
Really help soothe redness and speed up healing
I've been using these patches for a while now and I'm very happy with them - they're virtually invisible on the skin, stay on well and really help soothe redness and speed up healing.
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Reviewed in the United States on April 8, 2026