here is a copy of apostol for 40 bucks that someone is bragging was "never read".
Calculus : One-Variable Calculus with an Introduction to Linear Algebra (Vol. 1) (Calculus Ser., Vol. 1) (ISBN:0471000051)
Apostol, Tom M.
Price: US$ 40.00 [Convert Currency]
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Book Description: Hoboken, NJ, U.S.A.: John Wiley & Sons, Incorporated, 1967. SOFTCOVER-Like New, International Softcover Version-Printed Overseas for Asia in English-Word for Word the Same, Printed in Black and White, 2nd Edition No Highlights, No Marks, Never Read, Never Used. Bookseller Inventory #893876326583876
Bookseller: Word Nerd Inc. (Plainview, NY, U.S.A.)
and here is a 40 dollar spivak:
Calculus 3ed (ISBN:0914098896)
Spivak, Michael
Price: US$ 40.00 [Convert Currency]
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Book Description: PUBLISH OR PERISH INC. 3 HARDCOVER ISBN: 0914098896 Textbooks. SALE, Standard. Bookseller Inventory #17091409889611
Bookseller: Powell's Books (Portland, OR, U.S.A.)
sylnauvs p thompson for under 5 bucks:
Calculus Made Easy 3ed (ISBN:0312114109)
Being a Very-Simplest Introduction to Those Beautiful Methods of Reckoning Which are Generally Called by the Terrifying Names of the Differential Calculus and the Integral Calculus
Thompson, Silvanus P
Price: US$ 4.50 [Convert Currency]
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Book Description: ST MARTINS PRESS @. 1987 MASS MARKET ISBN: 0312114109 Mathematics-Calculus. USED, Standard. Bookseller Inventory #04031211410901
Bookseller: Powell's Books (Portland, OR, U.S.A.)
and the find of all: courant for 10 bucks!
Introduction to Calculus and Analysis
Courant, Richard
Price: US$ 10.00 [Convert Currency]
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Book Description: New York: Interscience Publishers, 1965. Hard Cover. Good. 23.5 cm. Showing wear to cover; writing on inside cover; pages slightly warped. Bookseller Inventory #004364
Bookseller: Mount Angel Abbey Library (St. Benedict, OR, U.S.A.)
need i say more?
another great deal: Thomas for 2 dollars!
ELEMENTS OF CALCULUS AND ANALYTICAL GEOMETRY.
Thomas, George B.:
Price: US$ 2.00 [Convert Currency]
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Book Description: Menlo Park: Addison-Wesley: 1967 - revised edition. 8vo (8.25" x 5.5"); pict. cloth; pp. xii, 692; pencilled note on eps. Good. Bookseller Inventory #1574
Bookseller: Ronald Hanko Books (Lynden, WA, U.S.A.)
here is anothere xcellent book, offereed used for up to 100 dollars, but available new for 38 dollars:
Calculus: The Elements
Michael Comenetz
Format: Paperback
Pub. Date: November 2002
FROM THE CRITICS
"Unlike any other calculus book I have seen...A scholarly, meticulously written explanation of calculus for the intelligent person who wants to understand the subject...Not only more intuitive in its approach to calculus, but also more logically rigorous in its discussion of the theoretical side than is usual...The style of exposition is well chosen to guide the serious beginner...A course based on it would in my opinion definitely have a much greater chance of producing students who understand the structure, uses, and arguments of calculus, than is usually the case...Many recent and popular works on the topic will appear intellectually sterile after exposure to this one."
at these prices no one need go without an adequate calc book.
these books are not written by people trying to make a million bucks, but by people who actually understand calculus and are trying to teach you to do so as well. thompson and thomas were engineers and the others are or were research mathematicians of some accomplishment.
here is a lovely book, hard to find. i do not know who the authors are, but the book is well thought out, well motivated, and well written. I was one of the original reviewers back when I did not understand the game of "i'll scratch your back if you scratch mine", and i stupidly criticized it for some minor mathematical errors. the publisher never changed them because they really only wanted praise from me, not criticism. they offered me two free books for my review and just assumed i would only say nice things. i thought they actually wanted to improve the book. but it is a good book because the authors care about making it interesting to the student.
i still recall the beautiful example of buffon's needle problem they use to motivate integration. i.e. if you throw a stick on the sidewalk, what is the likelihood it hits a crack in the sidewalk?