4. Write a simple factorial calculator program. The program should perform the following: Step 1. Ask the user to enter a positive integer. Step 2. Check if the entered integer is positive or negative. If it is positive, perform Step 3; otherwise, display an appropriate error message and the program should stop. Step 3. Calculate the factorial of the entered positive integer and display the result. Note: The factorial of n is denoted by n! and calculated by the product of integer numbers from 1 to n. For example, the entered integer is 5, the calculation of its factorial is: 5! = 1 x 2x3 x4 * 5 = 120. Step 4. Repeat Step 1 to Step 3 five (5) times. 5. Compile and execute the program. 6. Debug syntax and logical errors if there is any in the program. 7. The following is an example output: Factorial Calculator Enter a positive integer: 5 5! = 1 x 2 x 3 x 4 x 5 The factorial of 5 is: 120 Enter a positive integer: 4 4! = 1 x 2 x 3 x 4 The factorial of 4 is: 24 Enter a positive integer: -5 Invalid input! Program stopped! Figure 1: Example output with entered negative number

4. Write a simple factorial calculator program. The program should perform the following: Step 1. Ask the user to enter a positive integer. Step 2. Check if the entered integer is positive or negative. If it is positive, perform Step 3; otherwise, display an appropriate error message and the program should stop. Step 3. Calculate the factorial of the entered positive integer and display the result. Note: The factorial of n is denoted by n! and calculated by the product of integer numbers from 1 to n. For example, the entered integer is 5, the calculation of its factorial is: 5! = 1 x 2x3 x4 * 5 = 120. Step 4. Repeat Step 1 to Step 3 five (5) times. 5. Compile and execute the program. 6. Debug syntax and logical errors if there is any in the program. 7. The following is an example output: Factorial Calculator Enter a positive integer: 5 5! = 1 x 2 x 3 x 4 x 5 The factorial of 5 is: 120 Enter a positive integer: 4 4! = 1 x 2 x 3 x 4 The factorial of 4 is: 24 Enter a positive integer: -5 Invalid input! Program stopped! Figure 1: Example output with entered negative number

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Max Function

Statistical function is of many categories. One of them is a MAX function. The MAX function returns the largest value from the list of arguments passed to it. MAX function always ignores the empty cells when performing the calculation.

Power Function

A power function is a type of single-term function. Its definition states that it is a variable containing a base value raised to a constant value acting as an exponent. This variable may also have a coefficient. For instance, the area of a circle can be given as:

Question

4. Write a simple factorial calculator program. The program should perform the following:
Step 1. Ask the user to enter a positive integer.
Step 2. Check if the entered integer is positive or negative. If it is positive, perform Step 3; otherwise,
display an appropriate error message and the program should stop.
Step 3. Calculate the factorial of the entered positive integer and display the result.
Note: The factorial of n is denoted by n! and calculated by the product of integer numbers
from 1 to n. For example, the entered integer is 5, the calculation of its factorial is: 5! = 1 x
2 × 3 × 4 × 5 = 120.
Step 4. Repeat Step 1 to Step 3 five (5) times.
5. Compile and execute the program.
6. Debug syntax and logical errors if there is any in the program.
7. The following is an example output:
Factorial Calculator
Enter a positive integer: 5
5! = 1 x 2 x 3 x 4 x 5
The factorial of 5 is: 120
Enter a positive integer: 4
4! = 1 x 2 x 3 x 4
The factorial of 4 is: 24
Enter a positive integer: -5
Invalid input! Program stopped!
Figure 1: Example output with entered negative number

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