On a piano, a key has a frequency, say fo. Each higher key (black or white) has a frequency of fo * r, where n is the distance (number of keys) from that key, and r is 2(1/12) Given an initial key frequency, output that frequency and the next 3 higher key frequencies. Output each floating-point value with two digits after the decimal point, then the units ("Hz"), then a newline, using the following statement printf("%0.21f Hz\n", yourValue); Ex: If the input is 440.0 (which is the A key near the middle of a piano keyboard), the output is 440.00 Hz 466.16 Hz 493.88 Hz 523.25 Hz Note: To compute the next 3 higher key frequencies, use one statement to computer = 2(1/12) using the pow function (remember to include the math library). Then use that r in subsequent statements that use the formula fo=f0 *r" with n being 1, 2, and finally 3. S Run v main.c 1 #include 2 3 int main(void) { Reset Lab Tutorial

On a piano, a key has a frequency, say fo. Each higher key (black or white) has a frequency of fo * r, where n is the distance (number of keys) from that key, and r is 2(1/12) Given an initial key frequency, output that frequency and the next 3 higher key frequencies. Output each floating-point value with two digits after the decimal point, then the units ("Hz"), then a newline, using the following statement printf("%0.21f Hz\n", yourValue); Ex: If the input is 440.0 (which is the A key near the middle of a piano keyboard), the output is 440.00 Hz 466.16 Hz 493.88 Hz 523.25 Hz Note: To compute the next 3 higher key frequencies, use one statement to computer = 2(1/12) using the pow function (remember to include the math library). Then use that r in subsequent statements that use the formula fo=f0 *r" with n being 1, 2, and finally 3. S Run v main.c 1 #include 2 3 int main(void) { Reset Lab Tutorial

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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On a piano, a key has a frequency, say f0. Each higher key (black or white) has a frequency of fo* rn, where n is the distance (number of keys) from that key, and r is 2(1/12). Given an initial key frequency, output that frequency and the next 4 higher key frequencies. Output each floating-point value with two digits after the decimal point, which can be achieved as follows: print (f'{your_value1:.2f} {your_value2:.2f} {your_value3:.2f} {your_value4:.2f} {your_value5:.2f}') Ex: If the input is: 440 (which is the A key near the middle of a piano keyboard), the output is: 440.00 466.16 493.88 523.25 554.37 Note: Use one statement to compute r = 2(1/12) using the pow function (remember to import the math module). Then use that r in subsequent statements that use the formula fn = f0 * rn with n being 1, 2, 3, and finally 4. 461710.3116374.qx3zqy7 LAB ACTIVITY 1 22 2 2.16.1: LAB: Musical note frequencies Type your code here. 111 main.py 0/10 Load default template...
On a piano, a key has a frequency, say f0. Each higher key (black or white) has a frequency of f0 * r, where n is the distance (number of keys) from that key, and r is 201/12), Given an initial key frequency, output that frequency and the next 4 higher key frequencies. Output each floating-point value with two digits after the decimal point, which can be achieved as follows: print(f'{your_valuel: .2f} {your_value2: .2f} {your_value3: .2f} {your_value4: .2f} {your_value5: .2f}') Ex: If the input is: 440 (which is the A key near the middle of a piano keyboard), the output is: 440.00 466.16 493.88 523.25 554.37 Note: Use one statement to computer = 2112) using the pow function (remember to import the math module). Then use that r in subsequent statements that use the formula fn = f0 * rn with n being 1, 2, 3, and finally 4.
On a piano, a key has a frequency, say f0. Each higher key (black or white) has a frequency of f0 * rn, where n is the distance (number of keys) from that key, and r is 2(1/12). Given an initial key frequency, output that frequency and the next 4 higher key frequencies. NOTE: You must use a for loop. Output each floating-point value with two digits after the decimal point, which can be achieved by executingcout << fixed << setprecision(2); once before all other cout statements. Ex: If the input is: 440.0 (which is the A key near the middle of a piano keyboard), the output is: 440.00 466.16 493.88 523.25 554.37 Note: Use one statement to compute r = 2(1/12) using the pow function (remember to include the cmath library). Then use that r in subsequent statements that use the formula fn = f0 * rn with n being 1, 2, 3, and finally 4. Note: setprecision requires you to include the iomanip header file Write in C++.Please and thank you.
IN COARAL On a piano, a key has a frequency, say f0. Each higher key (black or white) has a frequency of f0 * rn, where n is the distance (number of keys) from that key, and r is 2(1.0/12.0). Given an initial key frequency, output that frequency and the next 4 higher key frequencies. Output all frequencies with five digits after the decimal point, which can be achieved as follows:Put frequency to output with 5 decimal places Ex: If the input is: 440.0 (which is the A key near the middle of a piano keyboard), the output is: 440.00000 466.16376 493.88330 523.25113 554.36526 Note: Use one statement to compute r = 2(1.0/12.0) using the RaiseToPower() function. Then use that r in subsequent statements that use the formula fn = f0 * rn with n being 1, 2, 3, and finally 4.
Given a number n, identify and print which in the given set of numbers are factors of n. Should there be no factors listed in the set of numbers, print "I'm alone". For example, given the number 36 and the set of numbers 2, 3, 5, 7, 12. Only print the numbers which are factors of 36, which are 2, 3, 12. Input The first line contains the number n; The second line contains how many numbers there are in the set of numbers; The third line contains the set of numbers. INPUT: 36 5 2·3·5·7·12 Output The set of numbers that are factors of n separated by a new line in order of appearance. If there are none, print "I'm alone" OUTPUT: 2 3 12
On a piano, a key has a frequency, say f0. Each higher key (black or white) has a frequency of f0 * rn, where n is the distance (number of keys) from that key, and r is 2(1/12). Given an initial key frequency, output that frequency and the next 4 higher key frequencies. Output each floating-point value with two digits after the decimal point, which can be achieved as follows:print('%0.2f %0.2f %0.2f %0.2f %0.2f' % (your_value1, your_value2, your_value3, your_value4, your_value5))
Write a program that asks users when their birthday is. Use information provided to give them their astrological sign. Each of the twelve signs should display a different horoscope. Use the following dates for each sign, keeping in mind that both month and day must be evaluated for an accurate result. Aries: March 21–April 20 Taurus: April 21–May 21 Gemini: May 22–June 21 Cancer: June 22–July 22 Leo: July 23–August 22 Virgo: August 23–September 23 Libra: September 24–October 23 Scorpio: October 24–November 22 Sagittarius: November 23–December 21 Capricorn: December 22–January 20 Aquarius: January 21–February 19 Pisces: February 20–March 20
Write a program that inputs a number and checks whether it is a perfect number or not. A perfect number is the number that is numerically equal to the sum of its divisors. For example, 6 is a perfect number because the divisors of 6 are 1, 2, 3 and 1+2+3=6
Exercise III: Catalan numbers For n e N, denote by c, to be the number of ways to form a "mountain range" with n upstrokes (U) and n downstrokes (D) that all stay above a horizontal line. For instance: for n = 1, only UD is allowed, so c = 1; • for n = 2, only UUDD and UDUD are allowed, so c2 = 2. 1. Check that c3 = 5 by writing down or drawing all possible options. 2. Consider the power series +00 g(x) = 2 n=0 (by definition co = 1) called the generating function of the sequence (en). Justify that cn < 4" for each n, and deduce that the radius of convergence of g is at least 1/4. 3. It can be show that for r E (-1/4, 1/4), g(x) = 1+ xg(r)? and therefore 1- VI 4.x g(x) = 2.x Use this formula and the known power series of V1+ x to write the first terms of the power series expansion of g, in the form g(x) = co + c1x + c2x2 + C3x + c4x* + ·.. Show how you obtain a few terms, but you do not need to show all computations and you can use a calculator for fractions. Check that you recover co,…
6. A palindrome is a number or text phrase that reads the same backwards or forwards. For example, each of the following five-digit integers is a palindrome: 12321, 55555, 45554 and 11611. Write a program that reads a 5 digit integer and determines whether it is a palindrome. Hint: One way to do this is to use division (/) and modulus (%) operators to separate the number into individual digits.
Write a program which: 1. prints all multiples of 5 between 5 and 50 inclusive and then 2. reads a number from the user and prints out if it is zero, above zero, or below zero
in the United States, telephone numbers consist of a three digit area code followed by a seven digit local number. Suppose neither the first digit of an area code nor the first digit of a local number can be a zero but that all other choices are acceptable. do not use commas when you write your number. For example enter 3356789 NOT 3,456,789