C++ How to Program (10th Edition)
10th Edition
ISBN: 9780134448237
Author: Paul J. Deitel, Harvey Deitel
Publisher: PEARSON
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Chapter 2, Problem 2.20E
(Diameter, Circumference and Area of a Circle) Write
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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 solution
(Sum the digits in an integer) Write a program that reads an integer between 0 and 1000 and adds all the digits in the integer. For example, if an integer is 932, the sum of all its digits is 14.
(Geometry: area of a regular polygon) A regular polygon is an n-sided polygon in
which all sides are of the same length and all angles have the same degree (i.e., the
polygon is both equilateral and equiangular). The formula for computing the area
of a regular polygon is
n x s?
Area
4 X tan
Here, s is the length of a side. Write a program that prompts the user to enter the
number of sides and their length of a regular polygon and displays its area. Here is
a sample run:
Chapter 2 Solutions
C++ How to Program (10th Edition)
Ch. 2 - Discuss the meaning of each of the following...Ch. 2 - Fill in blanks in each of the following: a)...Ch. 2 - Write a single C++ statement or line that...Ch. 2 - State which of the following are true and which...Ch. 2 - Fill in the blanks in each of the following: a)...Ch. 2 - What, if anything, prints when each of the...Ch. 2 - Which of the following statements contain...Ch. 2 - Given the algebraic equation y — ax 3 + 7. which...Ch. 2 - (OrderofEvaluation) State the order of evaluation...Ch. 2 - (Arithmetic) Write a program that asks the user to...
Ch. 2 - (Printing) Write a program that prints the numbers...Ch. 2 - (Comparing Integers) Write a program that asks the...Ch. 2 - (Arithmetic, Smallest and Largest) Write a program...Ch. 2 - (Diameter, Circumference and Area of a Circle)...Ch. 2 - (Displaying Shapes with Asterisks) Write a program...Ch. 2 - What does the fallowing code print? Cout “*\n...Ch. 2 - (Largest and Smallest Integers) Write a program...Ch. 2 - (Odd or Even) Write a program that reads an...Ch. 2 - (Multiples)Write a program that reads in two...Ch. 2 - (Checkerboard Pattern) Display the following...Ch. 2 - (Integer Equivalent of a Character) Here is a peek...Ch. 2 - (Digits of an Integer) Write a program that inputs...Ch. 2 - (Table) Using the techniques of this chapter,...Ch. 2 - (Body Mass Index Calculator) We introduced the...Ch. 2 - (Car-Pool Savings Calculator) Research several...
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