Chapter 6

Write the definition of a function that takes as input the three numbers. The function returns true if the first number to the power of the second number equals the third number; otherwise, it returns false. (Assume that the three numbers are of type double.)

include #include using namespace std; int main() { int temp = 0; for (int counter = 1; counter <= 100; counter++)… # Consider the following C++ program: #include #include using namespace std; int main() { int temp = 0; for (int counter = 1; counter <= 100; counter++) if (pow(floor(sqrt(counter / 1.0)), 2.0) == counter) temp = temp + counter; cout << temp << endl; return 0; } a. What is the output of this program? b. What does this program do?

include using namespace std; int mystery(int x, int y, int z); int main() { cout << mystery(7, 8, 3) << endl; co… # What is the output of the following program? #include using namespace std; int mystery(int x, int y, int z); int main() { cout << mystery(7, 8, 3) << endl; cout << mystery(10, 5, 30) << endl; cout << mystery(9, 12, 11) << endl; cout << mystery(5, 5, 8) << endl; cout << mystery(10, 10, 10) << endl; return 0; } int mystery(int x, int y, int z) { if (x <= y && x <= z) return (y + z - x); else if (y <= z && y <= x) return (z + x - y); else return (x + y - z); }

Write the definition of a function that takes as input three decimal numbers and returns the first number multiplied by the second number to the power of the third number.

Consider the following C++ function: int mystery(int num) { int y = 1; if (num == 0) return 1; else if (num < 0) return -1; else for (int count = 1; count < num; count++) y = y * (num - count); return y; } What is the output of the following statements? a. cout << mystery(6) << endl; b. cout << mystery(0) << endl; c. cout << mystery(-5) << endl; d. cout << mystery(10) << endl;

a. How would you use a return statement in a void function? b. Why would you want to use a return statement in a void function?

Identify the following items in the programming code shown below: a. Function prototype, function heading, function body, and function definitions. b. Function call statements, formal parameters, and actual parameters. c. Value parameters and reference parameters. d. Local variables and global variables. e. Named constants. #include //Line 1 using namespace std; //Line 2 const double NUM = 3.5; //Line 3 int temp; //Line 4 void func(int, double&, char); //Line 5 int main() //Line 6 { //Line 7 int num; //Line 8 double one; //Line 9 char ch; //Line 10 func(num, one, ch); //Line 11 cout << num << " " << one << " " << ch << endl; //Line 12 func(16, one, '%'); //Line 13 cout << num << " " << one << " " << ch << endl; //Line 14 return 0; //Line 15 } //Line 16 void func(int first, double& second, char ch) //Line 17 { //Line 18 int num; //Line 19 double y; //Line 20 int u; //Line 21 num = 2 * first; //Line 22 y = second * first; //Line 23 u = static_cast (ch); //Line 24 second = num + y * u; //Line 25 }

a. Explain the difference between an actual and a formal parameter. b. Explain the difference between a value and a reference parameter. c. Explain the difference between a local and a global variable.

include using namespace std; void func1(); void func2(); int main() { int num; cout << "Enter 1 or 2: "; cin >> … # What is the output of the following program? #include using namespace std; void func1(); void func2(); int main() { int num; cout << "Enter 1 or 2: "; cin >> num; cout << endl; cout << "Take "; if (num == 1) func1(); else if (num == 2) func2(); else cout << "Invalid input. You must enter a 1 or 2" << endl; return 0; } void func1() { cout << "Programming I." <

Write the definition of a void function that takes as input a decimal number and outputs 3 times the value of the decimal number. Format your output to two decimal places.