Irrational or Rational [Newton-Raphson]

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SUMMARY

The discussion centers on the determination of rational versus irrational solutions when using the Newton-Raphson method for solving equations. It is established that the output from the Newton-Raphson method is always rational, as it provides an approximate solution with a finite number of decimal places. However, the true nature of the solution—whether it is rational or irrational—cannot be determined through the Newton-Raphson method itself, as it does not yield the exact solution.

PREREQUISITES
  • Understanding of the Newton-Raphson method for numerical analysis
  • Familiarity with concepts of rational and irrational numbers
  • Basic knowledge of approximation techniques in mathematics
  • Ability to interpret numerical outputs from iterative methods
NEXT STEPS
  • Study the theoretical foundations of the Newton-Raphson method
  • Explore the properties of rational and irrational numbers
  • Learn about other numerical methods for solving equations, such as the Bisection method
  • Investigate the limitations of numerical approximation techniques
USEFUL FOR

Students in mathematics, particularly those studying numerical methods, as well as educators and anyone interested in the properties of solutions derived from iterative algorithms.

luznyr
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Homework Statement



How are you able to determine if a solution is rational or irrational

Homework Equations



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The Attempt at a Solution



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:confused:
I'm pretty sure it will be something basic I'm forgetting, thanks for any help.
 
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If you mean that you are using the Newton-Raphson method to solve an equation, then there are two oppposite ways to answer: (1) The "solution" the Newton-Raphson method gives you- which may be only approximate is always rational because it can only give you a finite number of decimal places. (2) There is no way of determining from the Newton-Raphson method whether or not the true solution to the equation is rational or irrational because you cannot determine the true solution using the Newton-
Raphson method.
 
cheers, never would of thought of that.
 

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