Conside the following function definition: def f(x-5,y,z-10): return x+y+z O This does not work because we need to place default arguments at the end O This does not work because we need to place default arguments at the beginning O This does not work because there are more than 1 default arguments We cannot replace f(x-5,yz-10) with f(x-5.y-3,z-10) because a function needs at least 1 non-default argument

Conside the following function definition: def f(x-5,y,z-10): return x+y+z O This does not work because we need to place default arguments at the end O This does not work because we need to place default arguments at the beginning O This does not work because there are more than 1 default arguments We cannot replace f(x-5,yz-10) with f(x-5.y-3,z-10) because a function needs at least 1 non-default argument

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter6: User-defined Functions

Section: Chapter Questions

Problem 38SA

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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)
(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.
(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)
Write a function which will take 4 arguments. They are: starting value(inclusive) ending value(exclusive) first divisor second divisor #First task is to take these arguments as user input and pass these values to the function. #Second task is to implement the function and find all the numbers that are divisible by the first divisor or second divisor but not both from the starting value(inclusive) and ending value(exclusive). Add all the numbers that are divisible and finally return this value. Print the returned value in the function call. Input:104047Function Call:function_name(10, 40, 4, 7)Output:210
1. Write a function which takes one parameter int num, and prints out a countdown timer with minutes and seconds separated by a colon (:). It should print out one line for each second elapsed and then pause one second before printing out the next line. A few things to note: - You can assume that calling the function usleep(1000000) makes the program pause for one second - It should count down from num minutes:zero seconds to zero minutes:zero seconds - Your function must have the following signature: void timer(int num) You do not need to demonstrate calling this function from main(). You don't need to format the output nicely; the below is acceptable output for calling this function when minutes is 10: 10:0 9:59 9:58 … 9:1 9:0 8:59 8:58 … 0:2 0:1 0:0
Engineers often measure the ratio of two power measurements in decibels, or dB, which can be calculated as follows:dB= log10P2/P1Where P2 is the power level being measured, and P1 is some reference power level. Write a function that calculates the level. The function’s prototype is as follows:double dBCalculator (double P1, double P2);Then, call dBCalculator from the main function to find the power ratio for the measurements from 1 to 20 Watts, in 2 Watt steps. You can assume that the reference power P1 is 1 Watt.
def truth_value(integer): """Convert an integer into a truth value.""" # Convert 0 into False and all other integers, # including 1, into True if integer == 0: truth_value = False else: truth_value = True return truth_value Now, write a function that goes in the opposite direction of the truth_value() function. This new function should convert a truth value into an integer. In particular, True should be converted into 1 and False into 0. Name the new function integer_0_or_1(). All you need to include below is your definition of the function integer_0_or_1(). It will be tested automatically against relevant inputs. So include your function and nothing more.
For this c++ hw 1) Make a function that reads in 2 integers from the user. (call it Get2Ints) 2) Make a function that swaps 2 integers (call it swap) 3) Make a function swapAndMult that takes two ints as parameters, and one more int parameter which will be a multiplier swapAndMult should take the two parameters and multiply them by the multiplier. The parameters should return from the function with new values. swapAndMult should NOT print out the values. 4) Make a function that prints 2 integers. Call it Print2Ints Main function should: a) declare two integers and a multiplier b) read 2 integers from the user (use your function) c) print the values of the integers (use the function) d) swap the integers e) print the values of the integers f) read an additional integer (the multplier) from the user g) print the multiplier from the user (sometimes called 'echoing the input') h) call swapAndMult i) print the values of the integers
Write a function which will swap its arguments if the first argument is greater than its second argument,but will not interchange them if the first argument is smaller than or equal to the second argument. Thefunction should return 1 if a swap was made, and 0 otherwise.(Hint: Make sure to use call by reference.)Write also a short test driver(i.e. a main() invoking your function). C++
Please help me with my homework, in computer programming as follows: A number, a is a power of b if it is divisible by b and a/b is a power of b. Write a function called is_power that takes parameters a and b and returns True if a is a power of b. Note: you will have to think of the base case.
In this challenge, the task is to debug the existing code to successfully execute all provided test files. Python supports a useful concept of default argument values. For each keyword argument of a function, we can assign a default value which is going to be used as the value of said argument if the function is called without it. For example, consider the following increment function: defincrement_by(n,increment=1):returnn+increment The functions works like this: >>>increment_by(5,2)7>>>increment_by(4)5>>> Debug the given function print_from_stream using the default value of one of its arguments. The function has the following signature: defprint_from_stream(n,stream) This function should print the first values returned by get_next() method of stream object provided as an argument. Each of these values should be printed in a separate line. Whenever the function is called without the stream argument, it should use an instance of EvenStream class defined in…
1-The function sum_n_avg computes the sum and the average of three input arguments and relays its results through two output parameters.a)Write a prototype for a function sum_n_avg that accepts three double-type input parameters and returns two output parameters through reference.b)Write the function definition for function sum_n_avg. The function definition is where the actual computations are performed.c)Write a function call in main () for sum_n_avg. The function call can look like below:{double one, two, three, sum_of_3, avg_of_3;printf("Enter three numbers> ");scanf("%lf%lf%lf", &one, &two, &three);sum_n_avg(__________________________________);. . .}2- Write a function definition for a function named final_grade that has a typeint input parameter called points and returns through an output parameter gradePtr the appropriate letter grade using a straight scale (90–100 is an A, 80–89 is a B, and so on). Return through a second output parameter (missedPtr) an…