This is a question sim开发者_JAVA百科ilar to a question here. I wonder is there already an open sourceimplementation or example of ARPACK Eigensolver that works well with PARDISO solver and Intel mkl
I have a function, P(x0, x1, ..., xn) that takes 100 integers as input and gives as output an integer. P is a slow function to evaluate(it can range from 30 seconds to a couple of minutes).
How is the derivative of a f(x) typically calculated programmatically to ensure maximum accuracy? I am implementing the Newton-Raphson method, and开发者_StackOverflow中文版 it requires taking of the
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