Concept explainers
(Rounding Numbers) Function floor can be used to round a number to a specific decimal place. The statement
Y = floor (x * 10 + 0.5) /10:
rounds x to the tenths position (the first position to the right of the decimal point). The statement
Y = floor (x * 100 + 0.5) /100:
rounds x to the hundredths position (the second position to the right of the decimal point). Write
a) roundTolnteger(number)
b) roundToTenths (number)
c) roundToHundredths(number)
d) roundToThousandths (number)
For each value read, your program should print the original value the number rounded to number rounded to the neatest integer, the number rounded to the nearest tenth, the number rounded to the hundred and the number rounded to the nearest thousandth.
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Chapter 6 Solutions
C++ How to Program (10th Edition)
- Filling the Pool (Deprecated) Write a program that calculates the time neccessary to completely fill an empty pool with water. We will assume that the pool is rectangular and the depth is uniform. All input values in this program will be integers. Prompt the user to enter the pool dimensions - length, width, and depth (unit: feet) - as well as the rate at which water can be put into the pool (unit: gallons per minute). Using these values, calculate and display the time (in minutes) needed to fill the pool from completely empty to completely full. Note: you should calculate the volume of the pool (as cubic feet) and then determine the rate (in cubic feet per minute) that water can be put into the pool. Assume that there are 7.48 gallons in one cubic foot. Your program should run like the examples shown below: Enter pool dimensions Length: 10 Width: 8 Depth: 7 Water entry rate: 14 The pool will fill completely in 299.2 minutesarrow_forwardinteger) Write a function that computes the sum of the digits in an integer. Use the following function header:def sumDigits(n):For example, sumDigits(234) returns 9 (Hint: Use the % operator to extract digits, and the // operator to remove the extracted digit. For instance, toextract 4 from 234, use 234 % 10 To remove 4 from 234, use 234 // 10 (=23) Use a loop to repeatedly extract and remove the digits until all the digits are extracted.) Write a test program that prompts the user to enter an integer and displays the sum of all its digits.arrow_forwardQ2: a- Write a program to pass two integer numbers as parameters to a function; this function is used to calculate and return the result of multiplication and division of the two numbers.arrow_forward
- 5. (Algebra: solve 2 X 2 linear equations) You can use Cramer's rule to solve the following 2 X 2 system of linear equation: ax + by = e cx + dy = f ● x = ed - bf bc ad y = af - ec ad bc - Write a program that prompts the user to enter a, b, c, d, e, and f and display the result. If ad- bc is 0, report that The equation has no solution. Enter a, b, c, d, e, f: 9.0, 4.0, 3.0, -5.0, -6.0, -21.0 Enter x is -2.0 and y is 3.0 Enter a, b, c, d, e, f: 1.0, 2.0, 2.0, 4.0, 4.0, 5.0 Enter The equation has no solutionarrow_forwardCode in Pythonarrow_forwardHelp me write the pseudocode for this question. Thank you! :)arrow_forward
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- Q3. (Dice Rolling) Write a program that simulates the rolling of two dice. The program should use rand to roll the first die and should use rand again to roll the second die. The sum of the two values should then be calculated. [Note: Each die can show an integer value from 1 to 6, so the sum of the two values will vary from 2 to 12, with 7 being the most frequent sum and 2 and 12 being the least frequent sums.] Figure 7.26 shows the 36 possible combinations of the two dice. Your program should roll the two dice 10,000 times. Use a one-dimensional array to tally the numbers of times each possible sum appears. Print the results in a tabular format. Also, determine if the totals are reasonable (i.e., there are six ways to roll a 7, so approximately one-sixth of all the rolls should be 7). 1 2 3 4 5 1 2 4 6 7 3 4 6 7 3 4 5 7 8 9 4 7 8 9 10 7 8 10 11 7 10 11 12 Row\Col 3.arrow_forwardFunctions & Loops : Case Studies Prompt the user to input two positive integers. Variables: firstNum and secondNum (firstNum must be less than secondNum) (use while loop); create a user-defined function called validateUserInput() to validate the user's input. Use Call-by-Value. validateUserInput() is a value returning function. Output all odd numbers between firstNum and secondNum. (use while loop); create a user-defined function called oddNumbers(). Use Call-by-Value. oddNumbers() is a void function. Output the sum of all even numbers between firstNum and secondNum. (use while loop); create a user-defined function called sumEvenNumbers(). Use Call-by-Value. Declare a variable called sumEven in the main() for the sumEvenNumbers(). sumEvenNumbers() is a value returning function. Use sumEven to hold a returned value. Output the numbers and their squares between 1 and 10. (use while loop): create a user-defined function called displaySquareNumbers(). Call-by-Value.…arrow_forwardC++++arrow_forward
- C++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology PtrC++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage LearningMicrosoft Visual C#Computer ScienceISBN:9781337102100Author:Joyce, Farrell.Publisher:Cengage Learning,