3rd order non-linear differential eqn

In summary, a 3rd order non-linear differential equation is a mathematical equation that involves a function and its derivatives up to the third order, and the function itself is raised to a power or multiplied by a non-linear term. It can also include constants and variables. The main difference between a linear and non-linear differential equation is that the latter involves higher powers and can have non-linear terms, making it more complex to solve. To solve a 3rd order non-linear differential equation, a particular solution and a complementary solution can be found using numerical or analytical methods. These equations have many real-world applications in fields such as science and engineering, as they allow us to model and understand complex systems. They are also important in research and engineering for
  • #1
Hitman
1
0
Im using maple, how can i find the general solution of y''y'''=y and then find the terms up to degree in taylor series using this general solution?

Thanks
 
Physics news on Phys.org
  • #2
You may convert it into a system of first-order equations:
y'=u
u'=v
vv'=y
 
  • #3
for your question! To find the general solution of the 3rd order non-linear differential equation y''y'''=y using Maple, you can use the dsolve command. This command allows you to solve differential equations symbolically, and you can specify the order of the equation and its dependent variables. In your case, you would use the command:

dsolve({y''*y'''=y}, {y(t)})

This will give you the general solution of the differential equation in terms of the variable t. To find the terms up to a certain degree in the Taylor series, you can use the taylor command. This command takes in the function and the variable, as well as the degree of the Taylor series. For example, if you want the first 5 terms in the Taylor series of the general solution, you would use the command:

taylor(y(t), t, 5)

This will give you the first 5 terms in the Taylor series of the general solution. You can then use the subs command to substitute specific values for t if needed. I hope this helps!
 

What is a 3rd order non-linear differential equation?

A 3rd order non-linear differential equation is a mathematical equation that involves a function and its derivatives up to the third order, and the function itself is raised to a power or multiplied by a non-linear term. It can also include constants and variables.

What is the difference between a linear and non-linear differential equation?

A linear differential equation is one in which the dependent variable and its derivatives are only raised to the first power and are not multiplied by any non-linear terms. This makes the equation easier to solve and the solution is typically a straight line. A non-linear differential equation, on the other hand, involves higher powers of the dependent variable and its derivatives, making the solution more complex and potentially non-linear.

How do you solve a 3rd order non-linear differential equation?

The general method for solving any differential equation involves finding a particular solution and a complementary solution. For non-linear differential equations, this can be done by using numerical methods, such as Euler's method, or by using analytical techniques, such as substitution, integration, and separation of variables.

What are some real-world applications of 3rd order non-linear differential equations?

Non-linear differential equations have a wide range of applications in various fields of science and engineering. Some examples include modeling population growth, chemical reactions, and electrical circuits. They can also be used to describe the motion of objects under the influence of non-linear forces, such as air resistance or friction.

Why are 3rd order non-linear differential equations important in science and mathematics?

Non-linear differential equations are important because they allow us to model and understand complex systems that cannot be described by simpler linear equations. They are also frequently used in research and engineering to study and solve problems that involve non-linear relationships and behaviors.

Similar threads

  • Differential Equations
Replies
5
Views
2K
  • Differential Equations
Replies
3
Views
1K
  • Differential Equations
Replies
2
Views
982
Replies
2
Views
2K
Replies
3
Views
786
  • Differential Equations
Replies
4
Views
954
  • Differential Equations
Replies
2
Views
2K
Replies
6
Views
2K
  • Differential Equations
Replies
12
Views
1K
Replies
38
Views
417
Back
Top