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Newton-Raphson (single variable) - MATLAB Video Lecture | MATLAB Programming for Numerical Computation - Software Development

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FAQs on Newton-Raphson (single variable) - MATLAB Video Lecture - MATLAB Programming for Numerical Computation - Software Development

1. What is the Newton-Raphson method in MATLAB?
Ans. The Newton-Raphson method is an iterative numerical method used to find the root of a given equation. In MATLAB, it is implemented as the "fzero" function. This method starts with an initial guess and iteratively refines it to approach the root of the equation.
2. How does the Newton-Raphson method work in MATLAB?
Ans. The Newton-Raphson method works by using the derivative of the function to calculate the slope of the tangent line at a given point. It then finds the x-intercept of this tangent line, which is the next approximation of the root. This process is repeated until the desired accuracy is achieved.
3. How can I use the Newton-Raphson method in MATLAB to find the root of an equation?
Ans. To use the Newton-Raphson method in MATLAB, you can use the "fzero" function. This function requires you to provide an initial guess for the root and the function you want to find the root of. MATLAB will then iteratively refine the guess until it finds a root of the equation.
4. Can the Newton-Raphson method fail to find a root in MATLAB?
Ans. Yes, the Newton-Raphson method can fail to find a root in MATLAB. This can happen if the initial guess is too far from the actual root, causing the iteration to diverge. It can also fail if the function has multiple roots or if the derivative of the function is zero at the root.
5. Are there any limitations or drawbacks of using the Newton-Raphson method in MATLAB?
Ans. Yes, there are some limitations and drawbacks of using the Newton-Raphson method in MATLAB. One limitation is that it may not converge if the initial guess is not close enough to the root. It also requires the function to be differentiable and its derivative to be known. Additionally, this method may not work well for functions with multiple roots or if the derivative of the function is zero at the root.
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