Great Trigonometry and geometry books?

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Discussion Overview

The discussion revolves around recommendations for books on geometry and trigonometry, focusing on comprehensive texts that cover fundamental to intermediate concepts, proofs, and historical context. Participants seek suggestions for both a broad textbook and a book that enhances appreciation for the subject.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Homework-related

Main Points Raised

  • Some participants suggest looking for a comprehensive geometry and trigonometry book that includes proofs, with specific titles mentioned such as those by Harold Jacobs and Jan Gullberg.
  • Others recommend David Cohen's Precalculus as a clear and easy-to-follow text, while noting that it combines algebra and trigonometry.
  • A few participants express concerns about the quality of newer editions of textbooks, particularly mentioning that the 3rd edition of Jacobs' book is seen as inferior due to the removal of two-column proofs.
  • Gelfand's approach to trigonometry is highlighted as beneficial, particularly for those with a geometry background, although some caution that it may be better as a supplement rather than a primary text.
  • Historical texts like S. L. Loney's Plane Trigonometry and Isaac Todhunter's Spherical Trigonometry are recommended for their thoroughness and historical context.
  • Some participants note that many trigonometry textbooks are similar in content, with varying levels of difficulty and clarity.
  • Geometry Revisited by Coxeter is mentioned as a challenging book, not suitable for beginners, indicating a range of difficulty levels in the suggested texts.

Areas of Agreement / Disagreement

Participants express a variety of opinions on specific textbooks, with no clear consensus on the best options. Disagreements exist regarding the quality of different editions and the suitability of certain texts for beginners versus more advanced learners.

Contextual Notes

Some participants note that understanding proofs and deeper explanations can be challenging, and there is a recognition that mastering a subject often requires multiple readings of different books.

Who May Find This Useful

Readers interested in enhancing their understanding of geometry and trigonometry, particularly those looking for comprehensive resources or historical context in their studies.

christian0710
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Hi I'm looking for 2 books
1. a big geometry and trigonometry book that covers almost everything (also proofs) from basic to intermediate so i have a solid understanding of geometry trigonometry.
2. a geometry or trigonometry that gives you an appreciation for trigonometry fx how it was used in history, or smart things you can use it for.

So far I've looked at
https://www.amazon.com/dp/055858876X/?tag=pfamazon01-20- Null pearson
https://www.amazon.com/dp/1111826854/?tag=pfamazon01-20

Suggestions are welcomed :)
 
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Geometry, by Harold Jacobs. Get the 2nd edition. The 3rd edition is watered down. For trig, I prefer Gelfand, however, knowledge of geometry is needed. I would get a standard book, ie David Cohen(buy the pre calculus version it is an algebra and trig book in 1). Stewart Precalculus. (Axler is a better choice but it is kind of rigorous for an introduction)There are better books for gwometry, ie Kisselev planimetry, however there are no answers in the back, and the book is rather terse. This is a recommended 2nd reading.
 
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Lang also has a neat geometry book, but I would avoid it. It doesn't follow standard euclidean axioms.
 
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christian0710 said:
Hi I'm looking for 2 books
1. a big geometry and trigonometry book that covers almost everything (also proofs) from basic to intermediate so i have a solid understanding of geometry trigonometry.
2. a geometry or trigonometry that gives you an appreciation for trigonometry fx how it was used in history, or smart things you can use it for.

So far I've looked at
https://www.amazon.com/dp/055858876X/?tag=pfamazon01-20- Null pearson
https://www.amazon.com/dp/1111826854/?tag=pfamazon01-20

Suggestions are welcomed :)
It's all in the proofs. The proofs drove me crazy- and what they meant.
 
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MidgetDwarf said:
Geometry, by Harold Jacobs. Get the 2nd edition. The 3rd edition is watered down. For trig, I prefer Gelfand, however, knowledge of geometry is needed. I would get a standard book, ie David Cohen(buy the pre calculus version it is an algebra and trig book in 1). Stewart Precalculus. (Axler is a better choice but it is kind of rigorous for an introduction)There are better books for gwometry, ie Kisselev planimetry, however there are no answers in the back, and the book is rather terse. This is a recommended 2nd reading.

The book by Harold Jacobs og Geometry you recommended looks really good based on reviews. Thank you for the recomendation :)
Quick question: What do you mean by "the 3rd edition is washed out?" :)

For trigonometry I'm mostly looking for a big book that covers a lot from fundamentals to more advanced explaining everything clearly (without to many assumptions) but also with some proofs and exercises with answers. I think i might choose Charles P for trigonometry however I've herd it's almost too basic, so Maybe Ron larson is better, don't know yet, tre reviewers on amazon have mixed opinions.
 
christian0710 said:
The book by Harold Jacobs og Geometry you recommended looks really good based on reviews. Thank you for the recomendation :)
Quick question: What do you mean by "the 3rd edition is washed out?" :)

For trigonometry I'm mostly looking for a big book that covers a lot from fundamentals to more advanced explaining everything clearly (without to many assumptions) but also with some proofs and exercises with answers. I think i might choose Charles P for trigonometry however I've herd it's almost too basic, so Maybe Ron larson is better, don't know yet, tre reviewers on amazon have mixed opinions.
Hmm most trigonometry textbooks (the ones used in high school/college) are roughly all the same. I liked David Cohen Pre Calcukus:A Problem Solving Approach. The book is clear, easy to follow, and the exercises are not trivial. The problems are harder than those in Stewart, Larson etc.

Not sure if Simmons wrote a book on trigonometry, but simmons books are good.

About Harold Jacobs. The 3rd edition does away with 2 column proofs, has been made easier. 2nd is better choice. Do not not buy the 3rd ed. It is an inferior book.

I would recommend Gelfand for trig, I believe you have not yet done geometry? You can go through most trig books without a geometry background, however knowledge of geometry is needed for a better understanding. Gelfand takes a geometric method of explaining trigonometry.

It has its problems ofcourse, it is better used as a supplement and later as a reference.
 
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I know a few people who used Charles P, the found it easier to understand. I read it for about 2 weeks at the school library was easy to read.. A great introduction for the basics. Remember if you fully want to understand a subject (no one does, however one should strive for mastery), multiple readings of different books are needed.
 
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As to your second question, a classical textbook is S. L. Loney's Plane Trigonometry. It's old, but extremely thorough, and great fun too if you like history.

https://ia802703.us.archive.org/26/items/planetrigonomet00lonegoog/planetrigonomet00lonegoog.pdf

A similar work on spherical trigonometry would be Isaac Todhunter's Spherical Trigonometry.

http://www.gutenberg.org/files/19770/19770-pdf.pdf

In my opinion, there are a few subjects (such as trigonometry and synthethic plane and solid geometry) for which the British textbooks of the 19th century remain unsurpassed.
 
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  • #10
MidgetDwarf said:
Hmm most trigonometry textbooks (the ones used in high school/college) are roughly all the same. I liked David Cohen Pre Calcukus:A Problem Solving Approach. The book is clear, easy to follow, and the exercises are not trivial. The problems are harder than those in Stewart, Larson etc.

Not sure if Simmons wrote a book on trigonometry, but simmons books are good.

About Harold Jacobs. The 3rd edition does away with 2 column proofs, has been made easier. 2nd is better choice. Do not not buy the 3rd ed. It is an inferior book.

I would recommend Gelfand for trig, I believe you have not yet done geometry? You can go through most trig books without a geometry background, however knowledge of geometry is needed for a better understanding. Gelfand takes a geometric method of explaining trigonometry.

It has its problems ofcourse, it is better used as a supplement and later as a reference.

I'm definitely going to get Harold Jacobs 2nd Edition. Thank you so much for the recommendation. It's strange how the important stuff (proofs and deeper explanations ) gets trimmed out in newer editions of textbooks, i have heard about this in other books as well.

So maybe If i begin with Harold Jacobs while simultaneously reading Charles P Trigonometry (New or old version?), and then to master trigonometry (I completely agree - mastering a subject and completely understanding it is fun) i might get Gelfand. Does Harold Jacobs do a good job in being clear and introducing subjects without assuming too much? There is also Tutor in a Book's Geometry by Jo Greig But i think it might just be a little too basic for me :)

Which of Simmons books do you recommend? I can see he wrote "Prechaculus mathematics in a nutshell"
Have you heard of Geometry revisited by Coxeter? Looks really good to, might also be of interest for you if you really like geometry :)
 
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  • #11
christian0710 said:
Have you heard of Geometry revisited by Coxeter? Looks really good to, might also be of interest for you if you really like geometry :)

This is a very difficult book. Certainly not for somebody new to trigonometry.
 
  • #12
KimF said:
As to your second question, a classical textbook is S. L. Loney's Plane Trigonometry. It's old, but extremely thorough, and great fun too if you like history.

https://ia802703.us.archive.org/26/items/planetrigonomet00lonegoog/planetrigonomet00lonegoog.pdf

A similar work on spherical trigonometry would be Isaac Todhunter's Spherical Trigonometry.

http://www.gutenberg.org/files/19770/19770-pdf.pdfIn my opinion, there are a few subjects (such as trigonometry and synthethic plane and solid geometry) for which the British textbooks of the 19th century remain unsurpassed.

Loney is nice, however the OP does not have an understanding geometry and trigonometry. Loney would be better for one who has completed a course on trigonometry, not a beginner.

Its like recommending Apostol/ Spivak as a first calculus book. Both books are excellent and eveyone studying STEM should strive to read themm, howevever, most people will not understand them as a first exposure to a subject. You must learn to crawl before you can run.
 
  • #13
MidgetDwarf said:
Loney is nice, however the OP does not have an understanding geometry and trigonometry. Loney would be better for one who has completed a course on trigonometry, not a beginner.

Its like recommending Apostol/ Spivak as a first calculus book. Both books are excellent and eveyone studying STEM should strive to read themm, howevever, most people will not understand them as a first exposure to a subject. You must learn to crawl before you can run.
Just a quick question: what about Harold Jabobs 1st edition? Is there a reaoson to get 2nd edition instead of 1st?
 
  • #14
Never seen the first. I only recommend books I have personally looked at. Just avoid the 3rd edition like the plague.
 
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  • #15
MidgetDwarf said:
Never seen the first. I only recommend books I have personally looked at. Just avoid the 3rd edition like the plague.
Cool I'll try the first edition and see how it is, It's relly cheap in europe. If i dislike it I'll go for the second edition :)
 

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