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Text: ThomasDay2019.txt:
 
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-      Early Thomas Day, or half a century of calculus
 
 
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-      When I was taking calculus as a West High School senior I found
 
 
-      most of the book (Protter and Morrey) to be understandable enough
 
 
-      until the chapter on the definite integral. I could not follow it
 
 
-      at all. The obvious solution was to rewrite the chapter so that I
 
 
-      could understand it.
 
 
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-      It has been 50 years since I rewrote chapter 8 and I was amusing
 
 
-      myself by rereading my rewriting. It reinspired a remembrance of
 
 
-      what I really liked about mathematics. You can enjoy it with me
 
 
-      by viewing the PDF copy of my original typescript. I assure you
 
 
-      that I subsequently learned how to spell "theorem" and "argument".
 
 
-  https 
 
-  //PivotRock.net/Opera_perfecta/didactica/DefiniteIntegral.pdf
 
 
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