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Unformatted text preview: 2.1 day 2: Step Functions Miraculous Staircase Loretto Chapel, Santa Fe, NM Two 360o turns without support! Greg Kelly, Hanford High School, Richland, Washington Photo by Vickie Kelly, 2003 Step functions are sometimes used to describe reallife situations. Our book refers to one such function: int( ) y x = This is the Greatest Integer Function . The TI89 contains the command , but it is important that you understand the function rather than just entering it in your calculator. int( ) x Greatest Integer Function: greatest integer that is x y = x y 0.5 0.75 1 1 Greatest Integer Function: greatest integer that is x y = x y 0.5 0.75 1 1 1.5 1 2 2 Greatest Integer Function: greatest integer that is x y = x y 0.5 0.75 1 1 1.5 1 2 2 Greatest Integer Function: greatest integer that is x y = x y 0.5 0.75 1 1 1.5 1 2 2 This notation was introduced in 1962 by Kenneth E. Iverson. Recent by math standards! Greatest Integer Function: greatest integer that is x y = The greatest integer function is also called the floor function . The notation for the floor function is: y x = We will not use these notations....
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This note was uploaded on 02/11/2011 for the course MAC 2233 taught by Professor Smith during the Spring '08 term at University of Florida.
 Spring '08
 Smith

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