Grab the PDF: Calculus Made Easy.Ĥ4 Comments on “Calculus Made Easy (Free book)” The word "integral" simply means "the whole". Now any fool can see that if x is considered as made up of a lot of little bits, each of which is called dx, if you add them all up together you get the sum of all the dx's, (which is the same thing as the whole of x). Ordinary mathematicians call this symbol "the integral of". ∫ which is merely a long S, and may be called (if you like) "the sum of." Thus ∫ dx means the sum of all the little bits of x or ∫ dt means the sum of all the little bits of t. To give you an idea of how the book is written, in Chapter 1, "To Deliver You From the Preliminary Terrors", we read: He quotes from an "ancient Simian proverb": He humbly calls himself a "fool", but doesn't treat the reader as one. Thompson puts great effort into explaining what is going on, rather than jumping straight into the calculations. In other words, this was one of the first ever "Calculus for Dummies" books. Totalling up all the little bits that are indicated by Is put there merely to give you instructions that youĪre now to perform the operation (if you can) of Terrifying symbol, you will henceforth know that it When you see an expression that begins with this Whole of the little bits added up together make It as cut up into little bits called seconds. Of time for one hour, you may (if you like) think of Means “the whole.” If you think of the duration You get the sum of all the ‘s, (which is the same Which is called, if you add them all up together Integral of.” Now any fool can see that if isĬonsidered as made up of a lot of little bits, each of Ordinary mathematicians call this symbol “the Of or means the sum of all the little bits Thus means the sum of all the little bits (2) which is merely a long, and may be called These little bits (or elements) may be considered to be More polite to say “an element of,” instead of “a littleīit of.” Just as you please. (1) which merely means “a little bit of.” Two principal symbols that are used in calculating. What is the meaning-in common-sense terms-of the The preliminary terror, which chokes off most fifth-formīoys from even attempting to learn how toĬalculate, can be abolished once for all by simply stating To deliver you from the Preliminary Terrors Master these thoroughly, and the rest willįollow. To present to my fellow fools the parts that are not Had to unteach myself the difficulties, and now beg Seem to desire to impress you with their tremendousĬleverness by going about it in the most difficult way.īeing myself a remarkably stupid fellow, I have Of advanced mathematics-and they are mostlyĬlever fools-seldom take the trouble to show you howĮasy the easy calculations are. Or a tedious task for any other fool to learn how to Surprising that it should be thought either a difficult Doesn’t it whet your appetite for more calculus? PrologueĬonsidering how many fools can calculate, it is Because of that I can include the awesome prologue and first chapter from this text in this post. It’s interesting to see that this project also makes the tex sources available. It’s been republished with additions, but I didn’t feel the new author added much value. I’d seen this book recently in the Markham public library. One of my favorite books, a great little book that my grandfather gave me, is now available on project gutenburg (free ebooks transcribed from old out of print material).
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