inverse-matrix

Python Inverse of a Matrix

How do I get the inverse of a matrix in python? I've implemented it myself, but it's pure python, and I suspect there are faster modules out there to do it. ...

How can I calculate the inverse of a matrix?

Can somebody show me how to calculate the inverse of a matrix? I'm using VC++ 6.0 ...

Statistics and matrix algebra in Ruby

I need to inverse a variance-covariance matrix in Ruby and vector by matrix multiplication. Which numerical Ruby library/Gem should I use? ...

inverting a 4x4 matrix

hello, i am looking for a sample code implementation on how to invert a 4x4 matrix. i know there is gaussian eleminiation, LU decomposition, etc. but instead of looking at them in detail i am really just looking for the code to do this. language ideally C++, data is available in array of 16 floats in cloumn-major order. thank you! ...

Matrices and inverse Matrices in Python

For a project that I am doing, I decompose a graph that I created using NetworkX into an adjacency matrix using the NetworkX adj_matrix() function. However, one of the problems that I have come across is that every single graph that I decompose gives me the following error when I try to find the inverse of the matrix. str: Traceback (m...

Java inverse matrix calculation

Hi, I'm trying to calculate the inverse matrix in Java. I'm following the adjoint method (first calculation of the adjoint matrix, then transpose this matrix and finally, multiply it for the inverse of the value of the determinant). It works when the matrix is not too big. I've checked that for matrixes up to a size of 12x12 the resul...

iPhone matrix multiplication and inversion

Hi all, I'm trying to apply a Kalman filter to the data coming out from the iPhone accelerometer. I need to perform matrix multiplication and inversion as fast as possible, so I was curious about the possibility of using the GPU to perform these two tasks. As of now I found only one reference for the matrix multiplication: float mBone01...

Java - Using Abstract classes properly (problem with COLT)

I'm using colt for some algebraic operations with sparse matrices. Actually i want to calculate a sparse matrix inverse, everything looks pretty easy but i'm not able to get it done. There is a method in "Algebra" called inverse that get a DoubleMatrix2D [abstract], and SparseMatrix2D is a direct subclass of DoubleMatrix2D. A couble of...