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baherus [9]
3 years ago
8

The frequency of a sine wave is defined as:

Computers and Technology
1 answer:
LekaFEV [45]3 years ago
7 0

Answer:

a.the number of cycles per second

Explanation:

The frequency of a sine wave is defined as the number of cycles per second.

Frequency is the inverse of the time period. The frequency of a sine wave is given by 1/TimePeriod . It is generally expressed in units of Hertz(Hz) or sec^-1. Larger the time period, lower will be the frequency and vice versa. So for higher frequency waves we need to ensure that the time period is small.

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1.What is the output of the following program? [10 Marks]namespace ConsoleApp1{class Program{static void Main(string[] args){int
Nataliya [291]

The program outputs the following rectangular array:

0 0 0 0

0 1  2 3

0 2 4 6

0 3 6 9

0 4 8 12

This is the correctly formatted C# program:

namespace ConsoleApp1{

   class Program

   {

       static void Main(string[] args)

       {

           int i, j;    // <em>declare index variables used to iterate over the array A</em>

           int [,] A = new int[5,5];   // <em>create a 5 by 5 array</em>

           

           /*<em> Iterate over the array with the index variables i and j</em>

<em>                and initialize each location A[i, j] with the product </em>

<em>                of i and j.</em> */  

           for (i = 0; i < 5; ++i)

           {

               for (j = 0; j < 4; ++j)

               {

                   A[i, j] = i*j;

               }

           }

           

           /* <em>Iterate over the array again. This time, swap locations </em>

<em>                A[i, j] with A[j, i]</em> */

           for (i = 0; i < 5; ++i)

           {

               for (j = 0; j < 4; ++j)

               {

                   if (i < 5)

                   {

                       A[j, i] = A[i, j];

                   }

                   else

                       break;

                   

                   // <em>display the current location A[i, j]</em>

                   Console.Write(A[i, j] + " ");

                   

               }

               /* <em>print a newline to prepare for the next line of printing</em>

                   <em>which corresponds to the next column i</em> */

               Console.WriteLine();

                // <em>pause and wait for user keypress before continuing</em>

               Console.ReadLine();

               

               }

           }

       }

   }

When executed, this program simply prints a rectangular array like so;

0 0 0 0

0 1  2 3

0 2 4 6

0 3 6 9

0 4 8 12

Learn more about predicting program output here: brainly.com/question/20259194

6 0
2 years ago
In most programming languages, the compiler carries a preprocessing step to determine if certain statements will compile. For in
MakcuM [25]

Answer:

See explaination for program code

Explanation:

package com.company;

import java.io.IOException;

import java.nio.file.Files;

import java.nio.file.Paths;

import java.util.Stack;

/*

* A program which reads input from given text filename and prints

* whether it passed the pre-processing stage or not

* Sample input

* int A = (a + b);static void display(int x)

* {

* //A sample input file

* }

* */

public class MyPreprocessor {

/*

* Reads input from filename and returns a string

* containing whole text

* */

public String readInput(String filename) {

String content = "";

try {

content = new String(Files.readAllBytes(Paths.get(filename)));

} catch (IOException e) {

e.printStackTrace();

}

return content;

}

/**

* Filters input since we are only concerned with

* a subset of input = '{}[]()/*'

*/

public String filterText(String text) {

String output = "";

for(int i = 0;i<text.length();++i) {

switch (text.charAt(i)) {

case '[':

case ']':

case '{':

case '}':

case '(':

case ')':

case '*':

case '/':

output += text.charAt(i);

}

}

return output;

}

/*

* Uses stack to determine if input is valid or not

* */

public boolean parse(String input) {

Stack<Character> St = new Stack<Character>();

// '$' is special symbol to represent bottom of stack

St.push('$');

for(int i = 0;i<input.length();++i) {

Character symbol = input.charAt(i);

if(St.peek().equals(getOpenSymbol(symbol)))

St.pop();

else St.push(symbol);

}

return St.peek() == '$';

}

private static Character getOpenSymbol(Character symbol) {

switch (symbol) {

case '}': return '{';

case ']': return '[';

case ')': return '(';

case '*': return '*';

case '/': return '/';

default: return ' ';

}

}

public static void main(String[] args) {

MyPreprocessor preprocessor = new MyPreprocessor();

String inputText = preprocessor.readInput("src/input.txt");

String filteredInput = preprocessor.filterText(inputText);

if(preprocessor.parse(filteredInput))

System.out.println("preprocessing passed.");

else System.out.println("preprocessing failed!");

}

}

6 0
3 years ago
Before becoming romantically involved with a coworker you should
astra-53 [7]
You should make sure no one is looking and make sure you have protection
7 0
3 years ago
Read 2 more answers
What is it called when you define a variable for the first time
Nimfa-mama [501]

Answer:

That is called declaring a variable

Explanation:

6 0
2 years ago
Read 2 more answers
Write a program that uses the function isPalindrome given in Example 6-6 (Palindrome). Test your program on the following string
Artist 52 [7]

Answer:

#include <bits/stdc++.h>

using namespace std;

bool isPalindrome(string str)

{

   char a,b;

int length = str.length();

for (int i = 0; i < length / 2; i++)

{

   a=tolower(str[i]);//Converting both first characters to lowercase..

   b=tolower(str[length-1-i]);

   if (b != a )

return false;

}

return true;

   

}

int main() {

   string t1;

   cin>>t1;

   if(isPalindrome(t1))

   cout<<"The string is Palindrome"<<endl;

   else

   cout<<"The string is not Palindrome"<<endl;

return 0;

}

Output:-

Enter the string

madam

The string is Palindrome

Enter the string

abba

The string is Palindrome

Enter the string

22

The string is Palindrome

Enter the string

67876

The string is Palindrome

Enter the string

444244

The string is not Palindrome

Explanation:

To ignore the cases of uppercase and lower case i have converted every character to lowercase then checking each character.You can convert to uppercase also that will also work.

6 0
2 years ago
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