The Lapack class

(PECL lapack >= 0.1.0)

简介

LAPACK is written in Fortran 90 and provides routines for solving systems of simultaneous linear equations, least-squares solutions of linear systems of equations, eigenvalue problems, and singular value problems. This extension wraps the LAPACKE C bindings to allow access to several processes exposed by the library. Most functions work with arrays of arrays, representing rectangular matrices in row major order - so a two by two matrix [1 2; 3 4] would be array(array(1, 2), array(3, 4)).

All of the functions are called statically, for example $eig = Lapack::eigenvalues($a);

类摘要

Lapack {

/* 方法 */

public static eigenValues ( array $a [, array $left [, array $right ]] ) : array

public static identity ( int $n ) : array

public static leastSquaresByFactorisation ( array $a , array $b ) : array

public static leastSquaresBySVD ( array $a , array $b ) : array

public static pseudoInverse ( array $a ) : array

public static singularValues ( array $a ) : array

public static solveLinearEquation ( array $a , array $b ) : array

}

Lapack::eigenValues — This function returns the eigenvalues for a given square matrix
Lapack::identity — Return an identity matrix
Lapack::leastSquaresByFactorisation — Calculate the linear least squares solution of a matrix using QR factorisation
Lapack::leastSquaresBySVD — Solve the linear least squares problem, using SVD
Lapack::pseudoInverse — Calculate the inverse of a matrix
Lapack::singularValues — Calculated the singular values of a matrix
Lapack::solveLinearEquation — Solve a system of linear equations

php 迭代器 the appenditerator class php cairo the cairofontoptions class php cairo the cairopatterntype class php chdb the chdb class php componere the componere definition class php dom the domattr class php dom the domprocessinginstruction class php event the eventutil class php gmp the gmp class php imagemagick the imagickpixeliterator class php 迭代器 the iteratoriterator class php lapack the lapack class php lapack the lapackexception class php types the mongodate class php mongodb bson the mongodb bson regex class php mongodb driver exception the mongodb driver exception bulkwriteexception class php exceptions the mongogridfsexception class php mysql xdevapi executionstatus class php mysql xdevapi warning class php oci8 the oci collection class

The Lapack class

简介

类摘要

Table of Contents