» Trigonometry Demystified (TAB Demystified)

Trigonometry Demystified (TAB Demystified) Reviews

Customer Rating:
Summary: Worst math author ever.
Comment: This individual,Stan Gibilisco, continues to write book after book despite his inability to write a math book.

The first book of his that I purchased, Technical Math, was so badly written that it was totally useless. I swore that I would never buy another book by this author.

I evidently forgot his name until I purchased this book. However after starting the first chapter and not believing a math book could be so badly written, his name hit me.

This time fortunately I was able to return the book.

Evidently publishers do not read readers reviews. Or maybe they don't care because some poor sap, that is not familiar with the author, will purchase his book. If they did care, they wouldn't hire him for another book.
Some of the subjects sound really interesing until you see who the auther is and then you know to forget it....

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Customer Rating:
Summary: Too much missing
Comment: Like another reveiwer, I also was very pleased with the Algebra Demystified book. As a long-time math disaster, I was able to test out of remedial Math and start College Algebra with a good foundation as a direct result of Albegra Demystified. After taking College Algebra, I returned to the Demystified Series to ramp me up on Trigonometry. I found that the author simply fails to explain his steps adequately. He makes too many assumptions about knowledge the student will possess. In fact, fresh out of College Algebra with a respectable high B, I was non-plussed after the earliest pages of Trigonometry Demystified, and actually found myself referring to my Algebra/Trigonometry textbook from college to clarify topics.

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Customer Rating:
Summary: Another disappointment
Comment: I have been trying to improve my career through re-learning most of the math concepts like geometry, trigonometry, calculus. To do this I have been pursuiting the reviews of books from amazon.com to get the books for.

Another day I have bought this book without reading any comments about it because the other algebra book was fine and from the same publisher I loved. But I am disappointed.

The book starts from the basics and trying to transfer the ideas to you in a as roughly way as possible. Defines sin, cos stuff but never *fully* explains what they really are. And top of them continues to put more un-fully-defined bricks to show how your stability goes far.

I am not recommending it to anyone who tries to learn the concepts and have a feeling about them.

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Customer Rating:
Summary: Math Teacher's POV
Comment: This book, like many math books, lacks a logical progression and mystifies Trig even more. A person trying to learn it for the first time would just give up and move on to something else.

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Customer Rating:
Summary: Why you hate math
Comment: This is without a doubt, one of the worst books i've ever read on any math subject. The examples in the beginning are moderately straight forward and can be followed but as the book progresses the author becomes increasingly stingy with explanations. The level of straight formula presentation such as in the section on hyperbolic functions is useless. He presents page after page of formula, with no explanation of use. At the end of this useless display, he ask how one would derive a new equation from the previous old ones. Even the explanation given for how to do this is obscure. Each chapter test the aquired knowledge. The answer key is no more than a series of a,b,d,e each indicating which multiple choice answer was correct. He shows NO work for any of the test problems. All in all, this book has been an extremely frustrating experience. It hasn't turned me off my desire to learn math but has helped me to realise their are charlatans in the math world.

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