Page Write an ODE that is a mathematical model of the situation described. In a city with a fixed population, P, the time rate of change of the number, N, of those persons infected with a certain virus is proportional to the product of the number who have the viru the number that do not.
Page Write an ODE that is a mathematical model of the situation described. In a city with a fixed population, P, the time rate of change of the number, N, of those persons infected with a certain virus is proportional to the product of the number who have the viru the number that do not.
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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![**Title: Writing an Ordinary Differential Equation (ODE) for Virus Spread in a Fixed Population**
**Page 1**
**Overview**
This section explains how to formulate an Ordinary Differential Equation (ODE) representing the spread of a virus in a fixed population. The ODE serves as a mathematical model to describe the dynamics of infection within a city.
**Description**
In a city with a fixed population (denoted as \( P \)), the time rate of change of the number of infected individuals \( (N) \) with a specific virus is proportional to the product of the number of individuals who are currently infected and those who are not infected.
Let:
- \( P \): Total fixed population
- \( N \): Number of infected individuals
- \( P-N \): Number of individuals not infected
The differential equation can be represented as follows:
\[ \frac{dN}{dt} = kN(P-N) \]
where \( k \) is the proportionality constant.
This equation captures how the virus spreads through interactions between infected and non-infected individuals in the population.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5dfcde0a-cc8e-4f7e-b5e2-9ec6ad36a3c9%2Fa9a2b157-7195-4c43-9239-1a66c6034c68%2Fej9y32f_processed.png&w=3840&q=75)
Transcribed Image Text:**Title: Writing an Ordinary Differential Equation (ODE) for Virus Spread in a Fixed Population**
**Page 1**
**Overview**
This section explains how to formulate an Ordinary Differential Equation (ODE) representing the spread of a virus in a fixed population. The ODE serves as a mathematical model to describe the dynamics of infection within a city.
**Description**
In a city with a fixed population (denoted as \( P \)), the time rate of change of the number of infected individuals \( (N) \) with a specific virus is proportional to the product of the number of individuals who are currently infected and those who are not infected.
Let:
- \( P \): Total fixed population
- \( N \): Number of infected individuals
- \( P-N \): Number of individuals not infected
The differential equation can be represented as follows:
\[ \frac{dN}{dt} = kN(P-N) \]
where \( k \) is the proportionality constant.
This equation captures how the virus spreads through interactions between infected and non-infected individuals in the population.
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