![]() ![]() However I can only really increase $n$ by $5$ each time as I don't know where the root is converging and if I increase $n$ by more, FindRoot starts finding other roots which I know aren't the value I'm looking for. I then use this root as my $x_0$ for $n=70$ etc. May I ask how to put the following Mathematica code into Matlab Theme. Solve Equations in Mathematica using Solve, FindRoot and Reduce Hifas Faiz 1. Then FindRoot will give me a more precise $x_0$ and I can use this to find the root for $n=65$. However I only know this $x_0$ for small $n \sim 60$. The method Mathematica uses internally to calculate roots of polynomials is the well established Jenkins-Traub method. ![]() Besides, if you know what is under the hood, you can use it more efficiently or avoid misuse. However, programming the algorithms outlined below has great educational value. ![]() I want to find the numerical root of this polynomial using FindRoot, starting from $x_0$ where the root I'm interested in is converging to some value. Mathematica has built-in functions Find Root, NSolve, Solve, Root that can solve the root-finding problems. Learn more about: Equation solving Tips for entering queries Enter your queries using plain English. It is sometimes helpful to plot the function. It also factors polynomials, plots polynomial solution sets and inequalities and more. Determine roots of the equation x3 + 2 x2 - x - 2 0 using the Solve, Nsolve. I have an iterative sum from $k=0$ to $k=n$ where the resulting sum is a polynomial of degree $n$. WolframAlpha is a great tool for finding polynomial roots and solving systems of equations. ![]()
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