numerical-methods

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sample random point in triangle [closed]

Closed. This question is off-topic. It is not currently accepting answers. 开发者_如何学编程Want to improve this question? Update the question so it's on-topic for Stack Overflow.[详细]

2023-02-06 02:54 分类：问答
Closed form cubic root finder implementation

I\'m looking for a non-iterative function that finds the real roots开发者_开发百科 of cubic polynomials. So, an implementation of something like this.[详细]

2023-01-30 13:32 分类：问答
numpy alternative for C++: linear algebra / FFT / numeric goodies?

I\'ve been using python + numpy for a while, and got familiarized (and char开发者_JS百科med) with it. Now, I need to do some calculations using C++, and was looking for a nice library to do numerical[详细]

2023-01-30 09:03 分类：问答
Saving numerical 2D array to image

Lately I have been doing some numerical method programming in C. For the bug fixing and throubleshooting it\'s nice to have some visual representation of what is happening. So far I have been outputti[详细]

2023-01-28 13:20 分类：问答
how can I evaluate the derivative of a spline function in R?

R can generate a spline function using splinefun() in the splines library. However, I need to evaluate this function at its first and second derivatives. Is there a way to do this?[详细]

2023-01-28 09:38 分类：问答
Numerical Integration of area defined by set of coordinates?

Suppose you have a general shape defined by a bunch of coordinate points that form something that looks like a circle, ellipse, or general closed curve - how do you find the a开发者_Python百科rea boun[详细]

2023-01-25 08:05 分类：问答
Is this a bug in NSolve in mathematica?

One would expect and hope that if you ask Mathematica to find the roots of a polynomial, it should give the same (approximate) answers whether you do this symbolically, then find numerical approximati[详细]

2023-01-21 10:19 分类：问答
Scipy optimize.curve_fit sometimes won't converge

I\'m trying to use numpy.optimize.curve_fit to estimate the frequency and phase of an on/off sequence.[详细]

2023-01-19 12:31 分类：问答
Converting a simple C code into a CUDA code

I\'m trying to convert a simple numerical analysis code (trapezium rule numerical integration) into something that will run on my CUDA enabled GPU.There is alot of literature out there but it all seem[详细]

2023-01-18 02:24 分类：问答
Is there a hyperreal datatype implementation for doing computations in non-standard analysis?

Non-standard mathematical analysis extends the开发者_JAVA百科 real number line to include \"hyperreals\" -- infinitesimals and infinite numbers.Is there (specification for an) implementation of a data[详细]

2023-01-14 10:11 分类：问答