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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"><html> <head><title>Flordia Tech, CSE 5257: Assignment #2</title></head><body><h1>CSE 5257: Assignment #2</h1><p><em>Due: Friday, September 13, 1996.</em></p><p>Do one of the following problems:</p><ul> <li><p>(Kamin and Reingold, 5.13a.) Write a Java program to determine all integers less than 3,000,000 with the property that they equal the sum of factorials of their digits; 145=1!+4!+5! for example. </p> <li><p>(Kamin and Reingold, 3.14a.) Write a Java program to determine if someone is obese or not. The Centers of Disease Control in Atlanta, Georgia, determine obesity by computing a person's "body mass index." The body mass index is a person's weight in kilograms divided by the square of his or her height in meters. For men, an index of 27.8 or more is considerd obese; for nopregnant women the cutoff is 27.3. Write a program to read a person's sex, height, and weight, determine the body mass index, and print a message as to obesity. Your program should convert height from inches to meters (one meter is 39.37 inches) and weight from pounds to kilograms (one kilogram is 2.20 pounds). </p> <li><p>(Kamin and Reingold, 3.11.) The musical scale in common use today is the equal-tempered chromatic scale with standard concert pitch of the fourth-octive A being 440 hertz. The twelve notes of each octave are logarithmically spaced. If we number the notes. <pre> 1 2 3 4 5 6 7 8 9 10 11 12 C C-sharp D E-flat E F F-sharp G G-sharp A B-flat B </pre> the following formula relates the note numbers and frequencies in hertz: <pre> log2(Frequency/55) = OctiveNumber + (NoteNumber - 22)/12 </pre> where the octave number is according to the standard scheme in which middle C begins at octave nubmer 4. Write a program to read a frequency and print the closest note and octave number. <li><p>(Kamin and Reingold, 8.1.) Write a recusive function to compute the Jacobi symbol J(a,n), defined for relatively prime integers a and , a>0 and n>0 by the formula <pre> 1 if a=1, J(a,n) = J(a/2,n)(-1)**((n**2-1)/8) if a is even, J(n mod a, a)(-1)**((a-1)(n-1)/4) ow. </pre></ul><h2>Turning it in</h2><p>Use the following command on<tt>tuck.cs.fit.edu</tt></p><font size=+1><pre>~ryan/bin/mfiles ryan@cs.fit.edu "asgn2" <i>ClassName</i>.java</pre></font>to mail me your artistic creation.<hr><address><!WA0><a href="http://www.cs.fit.edu/~ryan/">Ryan Stansifer</a> <!WA1><a href="mailto:ryan@cs.fit.edu"><ryan@cs.fit.edu></a></address><!-- hhmts start -->Last modified: Sun Sep 15 17:47:08 EST 1996<!-- hhmts end --></body></html>⌨️ 快捷键说明
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