Python Programming: An Introduction to Computer Science
3rd Edition
ISBN: 9781590282779
Author: John Zelle
Publisher: Franklin Beedle & Associates
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Chapter 3, Problem 3PE
Program Plan Intro
Molecular weight
- Define the main function.
- Declare required variables.
- Get the number of hydrogen atoms, carbon atoms and oxygen atoms from the user and store them in the variables “h”, “c”, and “o” respectively.
- Calculate molecular weight and store it in a variable “molecularWeight”.
- Print the value of “molecularWeight”.
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A complex number is a number in the form a+bi, where a and b are real numbers and i is √(-1)
The numbers a and b are known as the real part and imaginary part of the complex number, respectively. You can perform addition, subtraction, multiplication, and division for complex numbers using the following formulas:
a + bi + c + di = (a+c) + (b+d)i (addition)
a + bi − (c + di) = (a−c) + (b−d)i (subtraction)
(a + bi) * (c + di) = (ac−bd) + (bc+ad)i (multiplication)
(a + bi) / (c + di) = (ac+bd) / (c2+d2) + (bc−ad)i / (c2+d2) (division)
You can obtain the Absolute Value for a complex number using the following formula:
|a + bi| = √(a2 + b2)
A Complex number can be interpreted as a point on a plane by identifying the (a,b) values as the coordinates of the point. The absolute value of the complex number corresponds to the distance of the point to the origin, as shown in the example below.
(1) Design a class named Complex for representing complex numbers
Include…
Program by using C #
C sharp
My student number :1910206534
Body Mass Index (BMI) is a measure of health on weight. It can be calculated by taking your weight in kilograms and dividing by the square of your height in meters.
Write a program which prompts the user to enter the weight in kgs (integer value) and height in feet and inches (both integers) and then calculates the BMI of the person. Your
program first need to convert inches to meters (i.e. inches * 0.0254) and then use the following formula to calculate BMI:
weight kilogram / (height_meter)^2
Your program displays the BMI value in two decimal places and the corresponding status as shown in the examples below. Note that one inch is 0.0254 meters and 1 foot is 12
inches.
For example:
Input Result
62
5
10
89
6
0
45
BMI
BMI < 18.5
18.5 s BMI < 25.0
25.0 ≤ BMI < 30.0
30.0 ≤ BMI
7
82
5
Interpretation
Underweight
Normal
Overweight
Obese
2
Enter weight (kg):
Enter height (feet):
Enter height (inches):
BMI is 19.61, Normal
Enter weight (kg):
Enter height (feet):
Enter height (inches):
BMI is…
Chapter 3 Solutions
Python Programming: An Introduction to Computer Science
Ch. 3 - Prob. 1TFCh. 3 - Prob. 2TFCh. 3 - Prob. 3TFCh. 3 - Prob. 4TFCh. 3 - Prob. 5TFCh. 3 - Prob. 6TFCh. 3 - Prob. 7TFCh. 3 - Prob. 8TFCh. 3 - Prob. 9TFCh. 3 - Prob. 10TF
Ch. 3 - Prob. 1MCCh. 3 - Prob. 2MCCh. 3 - Prob. 3MCCh. 3 - Prob. 4MCCh. 3 - Prob. 5MCCh. 3 - Prob. 6MCCh. 3 - Prob. 7MCCh. 3 - Prob. 8MCCh. 3 - Prob. 9MCCh. 3 - Prob. 10MCCh. 3 - Prob. 1DCh. 3 - Prob. 3DCh. 3 - Prob. 4DCh. 3 - Prob. 6DCh. 3 - Prob. 1PECh. 3 - Prob. 2PECh. 3 - Prob. 3PECh. 3 - Prob. 4PECh. 3 - Prob. 5PECh. 3 - Prob. 6PECh. 3 - Prob. 7PECh. 3 - Prob. 8PECh. 3 - Prob. 9PECh. 3 - Prob. 10PECh. 3 - Prob. 11PECh. 3 - Prob. 12PECh. 3 - Prob. 13PECh. 3 - Prob. 14PECh. 3 - Prob. 15PECh. 3 - Prob. 16PECh. 3 - Prob. 17PE
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