Answered: Computer programs are great at…

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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Computer programs are great at computing mathematical formulas. Once the formula is properly encoded you can use the code as much as you want without reprogramming it and you can share it with non-programmers without any trouble. This lab is an example of such a formula. Once you program it you won’t have to worry about the area of a circle again. Write and test a program that computes the area of a circle. This program should request a number representing a radius as input from the user. Use the formula 3.14 × radius2 to compute the area. Tip: There are a couple of ways to code an exponent. Look in the Operators unit for help (and you can’t use an x for multiplication). Tip: You will need to use the float data type to compute the remainder. The output should explain the results. Don’t just print a number. Tip: For your print statement you will need to use the comma, “,”, or plus, “+” symbols to stitch your output together. (“The area is” , , “square units”) Name the source code file yourName_Lab3_2.py. Test and run the program. When testing use small numbers that you can easily test yourself to verify the program results. Capture the output console and save it as an image file named yourName_LAB3_output2.jpg. Submit the .py and the image files through Canvas.

2. Area of a Circle
Computer programs are great at computing mathematical formulas. Once the formula is properly encoded you can use the code as much as you want without reprogramming it and you
can share it with non-programmers without any trouble. This lab is an example of such a formula. Once you program it you won't have to worry about the area of a circle again.
Write and test a program that computes the area of a circle. This program should request a number representing a radius as input from the user.
. Use the formula 3.14 x radius? to compute the area.
o Tip: There are a couple of ways to code an exponent. Look in the Operators unit for help (and you can't use an x for multiplication).
• Tip: You will need to use the float data type to compuțe the remainder.
• The output should explain the results. Don't just print a number.
• Tip: For your print statement you will need to use the comma, ", or plus, "+" symbols to stitch your output together.
• ("The area is", <your variable>, "square units")
• Name the source code file yourName_Lab3_2.py.
• Test and run the program. When testing use small numbers that you can easily test yourself to verify the program results. Capture the output console and save it as an image file
named yourName_LAB3_output2.jpg.
• Submit the .py and the image files through Canvas.
NOTE: Below is sample output:
Lab 3 Part 2 Area of a Circle
Enter the radius of a circle: 5
The area of a circle with radius 5 is 78.5 square units.
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