Lapack::identity
(PECL lapack >= 0.1.0)
Lapack::identity — Return an identity matrix
Описание
public static array Lapack::identity
( int
$n
)Return a size n identity matrix
Список параметров
-
n -
The height and width of the identity matrix.
Возвращаемые значения
Will return a an array of n arrays, each containing n entries. The diagonals of the matrix will be 1s, the other positions 0.
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- Математические расширения
- Lapack
- Функция Lapack::eigenValues() - This function returns the eigenvalues for a given square matrix
- Функция Lapack::identity() - Return an identity matrix
- Функция Lapack::leastSquaresByFactorisation() - Calculate the linear least squares solution of a matrix using QR factorisation
- Функция Lapack::leastSquaresBySVD() - Solve the linear least squares problem, using SVD
- Функция Lapack::pseudoInverse() - Calculate the inverse of a matrix
- Функция Lapack::singularValues() - Calculated the singular values of a matrix
- Функция Lapack::solveLinearEquation() - Solve a system of linear equations
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