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- Write the definition of a function that takes as input two decimal numbers and returns first number to the power of the second number plus second number to the power of the first number. (4)(Practice) For the following function headers, determine the number, type, and order (sequence) of values that should be passed to the function when it’s called and the data type of the value the function returns: a. int factorial(int n) b. double volts(int res, double induct, double cap) c. double power(int type, double induct, double cap) d. char flag(char type, float current, float time) e. int total(float amount, float rate) f. float roi(int a, int b, char c, char d, float e, float f) g. void getVal(int item, int iter, char decflag, char delim)(Numerical) Heron’s formula for the area, A, of a triangle with sides of length a, b, and c is A=s(sa)(sb)(sc) where s=(a+b+c)2 Write, test, and execute a function that accepts the values of a, b, and c as parameters from a calling function, and then calculates the values of sand[s(sa)(sb)(sc)]. If this quantity is positive, the function calculates A. If the quantity is negative, a, b, and c do not form a triangle, and the function should set A=1. The value of A should be returned by the function.
- Mark the following statements as true or false: a. To use a predefined function in a program, you need to know only the name of the function and how to use it. (1) b. A value-returning function returns only one value. (2, 3) c. Parameters allow you to use different values each time the function is called. (2, 7, 9) d. When a return statement executes in a user-defined function, the function immediately exits. (3, 4) e. A value-returning function returns only integer values. (4) f. A variable name cannot be passed to a value parameter. (3, 6) g. If a C++ function does not use parameters, parentheses around the empty parameter list are still required. (2, 3, 6) h. In C + + , the names of the corresponding formal and actual parameters must be the same. (3, 4, 6) i. A function that changes the value of a reference parameter also changes the value of the actual parameter. (7) j. Whenever the value of a reference parameter changes, the value of the actual parameter changes. (7) k. In C++, function definitions can be nested; that is, the definition of one function can be enclosed in the body of another function. (9) l. Using global variables in a program is a better programming style than using local variables, because extra variables can be avoided. (10) m. In a program, global constants are as dangerous as global variables. (10) n. The memory for a static variable remains allocated between function calls. (11)17. A function should determine the average of x and y. What should be the function's parameters and return value(s)? A.Parameters: none Return values: X,y B.Parameters: ×, y, average Return value: none C.Parameters: average Return values; X, y D.Parameters: X, y Return value: average2. If a function have all the default arguments but still some values are passed to the function then _________.
- Explain why it's okay for a function to have side effects on occasion.Consider the following function call: draw_circle('red', 3) What is the function name and what is the first argument passed to the function? a. The function name is draw_circle and the first argument is 3. b. You need to see the function definition to determine the function name and arguments. c. The function name is draw_circle, but you need to see the function definition to determine the arguments. d. The function name is draw_circle and the first argument is 'red'. e. The first argument is 'red', but you need to see the function definition to determine the function name.State the following is true or false. If false, explain why."Empty parentheses following a function name in a function definition indicate that the function does not require any parameters to perform its task."
- Please fill in the blanks for the following statements: If a function does not return a value its return type is __________________.How do you call function that you created? How to use function? This is one of most important topics as every program is moduled in the real world. Example) is the function call valid below if you created this function [x,y] = calcsem(a,b,c)? result=calcem(3,5,7) valid or invalid? Why?