Skip to content Skip to sidebar Skip to footer
Showing posts with the label Linear Algebra

Pytorch Most Efficient Jacobian/hessian Calculation

I am looking for the most efficient way to get the Jacobian of a function through Pytorch and have … Read more Pytorch Most Efficient Jacobian/hessian Calculation

Fast Weighted Scatter Matrix Calculation

In this question six months ago, jez was nice enough to help me come up with a fast approximation f… Read more Fast Weighted Scatter Matrix Calculation

What Is The Significance Of Omega In Successive Over Relaxation Rate Method?

I have the following matrix I have transformed this to strictly dominant matrix and applied Guass-… Read more What Is The Significance Of Omega In Successive Over Relaxation Rate Method?

Unexpected Eigenvectors In Numpy

I have seen this question, and it is relevant to my attempt to compute the dominant eigenvector in … Read more Unexpected Eigenvectors In Numpy

Solving Systems Of Equations Modulo A Certain Number, With Or Without Numpy

Suppose I have this system of equations: If I wanted to solve it using numpy, I would simply do th… Read more Solving Systems Of Equations Modulo A Certain Number, With Or Without Numpy

Solving Linear Equations W. Three Variables Using Numpy

I'm currently in need of a class, which must be able to display and solve an equation system li… Read more Solving Linear Equations W. Three Variables Using Numpy

Matrices Are Not Aligned Error: Python Scipy Fmin_bfgs

Problem Synopsis: When attempting to use the scipy.optimize.fmin_bfgs minimization (optimization) f… Read more Matrices Are Not Aligned Error: Python Scipy Fmin_bfgs

Scipy Lu Factorization Permutation Matrix

As I understand LU factorization, it means that a matrix A can be written as A = LU for a lower-tri… Read more Scipy Lu Factorization Permutation Matrix

How Can I Store Float Numbers Larger Than 1*10^310 In Python?

I am working on a program that outputs the condition number of a big matrix, so I used the Power Me… Read more How Can I Store Float Numbers Larger Than 1*10^310 In Python?

How Does One Test If A Matrix In Python Has Only 1's And 0's?

Let's say I've got a matrix like this: mat1 = np.array([1,0,1], [1,1,0], [0,0,0]); And I&#… Read more How Does One Test If A Matrix In Python Has Only 1's And 0's?

Broadcasting Linalg.pinv On A 3D Theano Tensor

in the example below, there is a 3d numpy matrix of size (4, 3, 3)+ a solution about how to calcula… Read more Broadcasting Linalg.pinv On A 3D Theano Tensor