Questions tagged [scipy]

Question 1

I’m implementing a 3D Laplace Fast Multipole Method in Python and I’m trying to validate my P2M, potential evaluation, and M2M steps against direct summation. P2M + evaluation agree with direct ...

Question 2

I'm reading through this research paper, and from section 2, I have deduced that the Finite Fourier Sine Transform along $0\le x\le L_x$ is formulated as $$F(m) = \frac{2}{L_x}\int_0^{L_x} f(x) \sin\...

Question 3

I'm trying to implement the Fast Multipole Method (FMM) based on the "Short Course on the Fast Multipole Method" by Beatson and Greengard. My goal is to accurately compute Coulomb ...

Question 4

I'm trying to use Scipy's Fast Inverse Hanekl Transform function (ifht) on some very simple functions, yet it gives completely wrong results. As an example, I want ...

Question 5

Problem I am currently trying to solve a very high dimensional ODE of the form $\dot y = f(y)$ on $[0,1]$. Mathematically, my ODE makes sense in a discrete range of dimensions $\{d_0, d_1, d_2, \dots\}...

Question 6

I am dealing with a very high dimensional (think thousands of dimensions) non-linear (not even Lipschitz) ode system. I am experiencing some phenomenon which I am trying to explain by means of an ...

Question 7

I was trying out the minimize function from scipy ...

Question 8

I need a minimizer that works well with high precision. I am currently doing all calculations with mp math to handle the high precision, and am then using a minimizer in scipy where the objective ...

Question 9

I am intending to use the order_filter from scipy.signal in a project of mine. But I am not able to understand mathematically ...

Question 10

While fitting the energy spectrum of cobalt for two distinct peaks I am not getting fit parameters and receiving the warning: warnings.warn('Covariance of the parameters could not be estimated'). I'm ...

Question 11

I want to apply the 10th-order Runge-Kutta method, but I am having trouble finding the coefficients. I read Ernst Hairer's article, he used the stage s=17 and ...

Question 12

How can I define preconditioners (SPILU, SPAI, etc.) for sparse iterative methods (TFQMR, GMRES, CGS, etc.) for the matrix-free left-hand side? I defined $Ax=b$ using matrix-free $A$ (with ...

Question 13

I want to solve the beam equation with distributed load and elatic term (which depends on how much the beam interact with the terrain) : $$ EI\frac{d^4w}{dx^4}+k*(w(x)-t(x))=q(x) $$ where $q(x)$ is a ...

Question 14

I want to run the below code for maxiter = 20001. I don't want it to stop by some default criteria. ...

Question 15

I am looking at the construction of BSplines out of curiosity. I created a small code that uses scipy.interpolate.BSpline to create basic splines. I get the following basic splines for order 0, 1 and ...

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Questions tagged [scipy]

M2M in python using SciPy.sph_harm_y

More accurate ways to approximate a Finite Fourier Sine Transform?

A python code for the translation of a multipole expansion

Scipy Hankel Transform with FFTLog algorithm gives wrong result

Which state-of-the-art ODE solver can handle very high-dimensional systems?

How to decrease the error for the solution of my high dimensional ode?

scipy minimize gives 0 minimum for unbounded problem

High precision minimizer

Mathematical operation of scipy.signal.order_filter

Warning in curve_fit "Covariance of the parameters could not be estimated"

10th-order Runge-Kutta Method

Preconditioner Implementation with matrix-free methods (sparse iterative solvers)

Solve beam equation with elastic term using scipy solve_bvp

How to run scipy.optimize.minimize with L-BFGS-B for maxiter (completely)

BSplines from scipy not defined on whole range of the knots

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