Finding critical points of a non-linear sysytem

In summary, the conversation discusses finding the critical points for a given system of equations. The equation x1=x2+y2-2xy-1=0 and y1=y+x-2=0 were given and the person attempted to solve for zero, but ended up with multiple solutions. They then substituted y=2-x into the equation and solved for x, which led to finding the critical points at (0.5,1.5) and (1.5,0.5). They expressed gratitude for the help provided.
  • #1
dp182
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0

Homework Statement


I am trying to find the critical points of the system x1=x2+y2-2xy-1 and y1=y+x-2


Homework Equations


x1=x2+y2-2xy-1=0
y1=y+x-2=0

The Attempt at a Solution


I tried to solve for zero but I end up with multiple solutions way more then I should need any help answering would be helpful
 
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  • #2
So what I did was write y=2-x and substituted into x^2+y^2-2xy-1=0 to get an equation for x, I solved this and find x and then I used the answers to find y. the two critical points are (0.5,1.5) and (1.5,0.5)
 
  • #3
thanks so much that really helps alot
 

FAQ: Finding critical points of a non-linear sysytem

What is a critical point in a non-linear system?

A critical point in a non-linear system is a point where the derivative of the system is equal to zero, or the system has no defined derivative. This means that the slope of the system at this point is either flat or undefined, indicating a potential change in behavior of the system.

Why is finding critical points important in non-linear systems?

Finding critical points allows us to identify key points in a non-linear system where there may be important changes or transitions. It can help us understand the behavior of the system and make predictions about its future behavior.

How do you find critical points in a non-linear system?

To find critical points in a non-linear system, we must take the derivative of the system and set it equal to zero. Then, we solve for the variables to find the points where the derivative is equal to zero. These points are the critical points of the system.

Can a non-linear system have multiple critical points?

Yes, a non-linear system can have multiple critical points. This means that there can be multiple points where the derivative is equal to zero, indicating potential changes in behavior of the system. These points can be found by solving the derivative of the system for each variable and finding the points where they are all equal to zero.

What information can we learn from the critical points of a non-linear system?

By analyzing the critical points of a non-linear system, we can learn about the behavior and stability of the system. We can determine if the system will approach or move away from these points, and if they are minimum, maximum, or inflection points. This information can help us make predictions and better understand the behavior of the system.

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