In this lab we will practice 2d array and call by reference using pointer. your code should have the following functions: getdata(): write a function that takes the reference of a 2d array, reference of variables, one for number of rows and another for number of columns as parameter. in the function, it takes number of rows and number columns as user input and update the variable passed to it. then it takes the input for the matrix based on number of rows and columns. display(): this function takes a 2d array, number of rows and columns as parameter and prints the matrix in a well formatted way.

answer:

can you answer my question?

explanation:

answer:

// here is code in C++.

#include <bits/stdc++.h>

using namespace std;

//main function

int main()

{

  // variable

 int n;

 cout<<"enter a number:";

 // read the input

 cin>>n;

 // find the square root of the absolute value

 float square_root=sqrt(abs(n));

 // print the square_root

 cout<<"square root of "<<n<<" is: "<<square_root<<endl;

  return 0;

}

Explanation:

Read a number from user and assign it to "n".Then find its absolute value with abs() function.Then calculate the square root of the absolute value with sqrt() function.Print the square root of the number.

Output:

enter a number:-17

square root of -17 is: 4.12311

                                                         This is easy

                                                     sinserly Natalie 7 grader (this is not that hard)

answer:

D is the anseer

Explanation: