# Tagged Questions

Questions on numerical analysis/numerical methods; methods for approximately solving various problems that often do not admit exact solutions.

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### Second-order differential equations methods

I'm looking for a method called 'Inexact Method' Idk if it goes by another name, here's what I do know: It's one of the two 2nd order differential equations methods. The other method is called '...
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### To solve large systems of multivariate polynomial equations

Nicolas Courtois et al. proposed the eXtended Linearization(XL) method to solve the systems of multivariate polynomial equations and analyzed the time complexity. Polynomial when the number of (...
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### Iterations with matrices over simple fields approximating solutions for more complicated fields.

Inspired by this question I started wondering if there exist some systematic way to construct approximation to any number one can find using matrices over a preferrably simpler field. In the question ...
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### Understanding definition of explicit Euler method

I'm quite new to ODE and the IVP (initial value problem), so I've some doubts related to these topics. I'm reading a draft provided by my professor which talks about the "polygon" or explicit Euler ...
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### Trapezoidal and Simpsons Rule

Question: Approximate the value of $$\int_2^3 \frac{2}{1+x^2}dx$$ to three decimal places, with $n=4$, using A. The Trapezoidal Rule B. Simpsons Rule I know you have to do something with rectangles,...
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