2: This is an excellent book - period
I am 55 years old and promised myself that when I became financially able I would relearn Algebra, Trigonometry, Geometry, Calculus I, II,III & IV and ODE skills from start to finish. I am now finished with Sullivan's book I have found the book easy to read and understand. The presenation of the material is well thought out and the abundance of practice problems invaluable. If you are serious about math then this is a great book.
A retired hedge fund manager.
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5: Very Good Precalculus Reference
With the sixth edition of this textbook, Sullivan has made significant strides since the fifth edition of the College Algebra portion. The interval notations used to indicate the regions where the value of a function is increasing or decreasing is so much more clear and concise. In contrast to the former use of frequently displaying number lines with pluses and minuses underneath, in which the readings of them were perhaps more of an exercise for the eyes than for the mind, Sullivan revised this mess using parentheses and brackets to indicate test intervals.As a teacher, I say that this is not the most user-friendly book for an instructor who teaches one hour college algebra classes three times a week. Oftentimes, for me to quickly get the fundamentals across, I have to paraphrase what Sullivan lays out in many of the sections. The language is often too theoretical for several of my students (Many are in non-technical majors but have to complete college algebra as a last mathematics course requirement), and I have to put the symbolic logic sequences into terms that can cross over to applied mathematics. This is not meant to be a criticism, however. Perhaps the main weaknesses lie in the shortcomings of applied problems, particularly in the sections concerning maxima and minima, and especially in the inequality segments. On a very positive note, however, I will grant that the sixth chapter, which involves logarithms and exponents is quite fascinating. For instance, you have applied problems involving the amount of interest that can be gained after so many years if, say, [money amount]is deposited into an account and accumulates interest at 6% compounded quarterly. Physics problems are also well presented. One interesting tidbit: if you wondered how long it would take for a 300-degree dish to cool down to 100 degrees in an environment that is at room temperature, the formula that can be used, namely Newton's Law of Cooling, is provided. As another example: suppose that a dead animal was discovered in a barn at midnight and its temperature was 80??F?? ; the temperature of the barn is kept constant at 60??F; two hours later the temperature of the corpse dropped to 75??F; find the time of death. The formula for this type of problem is also shown. As added kudos, I especially like the intermittent TI-83 calculator tips. The use of technology in mathematics classes is notably increasing in the community colleges. All in all, this is a finer, more updated version, and it is especially recommended for those who want to go beyond the call of duty and discover new ways of applying mathematics to their daily lives.
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