Create a script to input 2 numbers from the user. The script will then ask the user to perform a numerical calculation of addition, subtraction, multiplication, or division. Once the calculation is performed, the script will end.

The code given is written in C++

First we declare the variables to be used during the execution. The names given are self-explanatory.

Then the program outputs a request on the screen and waits for user input, for both numbers and one more time for the math operation wanted, selected with numbers 1 to 4.

Finally, the program executes the operation selected and outputs the result on screen.  

Code:

#include <iostream>

int main()

{

// variable declaration

float numberA;

float numberB;

int operation;

float result=0;

//number request

std::cout<<"Type first number:\n"; std::cin>>numberA;

std::cout<<"Type second number:\n"; std::cin>>numberB;

//Operation selection

cout << "Select an operation\n";

cout << "(1) Addition\n";

cout << "(2) Subtraction\n";

cout << "(3) Multiplication\n";

cout << "(4) Division\n";

std::cout<<"Operation:\n"; std::cin>>operation;

switch(operation){

 case 1:

 result = numberA+numberB;

 break;

 case 2:

 result = numberA-numberB;

 break;

 case 3:

 result = numberA*numberB;

 break;

 case 4:

 result = numberA/numberB;

 break;    

 default:

 std::cout<<"Incorrect option\n";

 }

//Show result

std::cout<<"Result is:"<<result<<::std::endl;

return 0;

}

the answer to your question would be something called hertz. the unit of measurement called a hertz, which is one cycle per second, is used to measure clock speed. within one cycle, your computer processes, refreshes, or updates itself to the changes that it is going through. in the case of computer clock speed, one hertz equals one tick per second. the clock speed of computers is usually measured in megahertz (mhz) or gigahertz (ghz)