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Long Term Support Release
- Bug fixes for general core bugs in 4.1.x will end 13 November 2023 (12 months).
- Bug fixes for security issues in 4.1.x will end 10 November 2025 (36 months).
- PHP version: minimum PHP 7.4.0 Note: minimum PHP version has increased since Moodle 4.0. PHP 8.0.x is supported too.
Differences Between: [Versions 310 and 401] [Versions 311 and 401] [Versions 39 and 401]
Class for the management of Matrices
| Copyright: | Copyright (c) 2018 Mark Baker (https://github.com/MarkBaker/PHPMatrix) |
| License: | https://opensource.org/licenses/MIT MIT |
| File Size: | 423 lines (12 kb) |
| Included or required: | 0 times |
| Referenced: | 0 times |
| Includes or requires: | 0 files |
Defines 1 class
Matrix:: (19 methods):
__construct()
buildFromArray()
validateRow()
validateColumn()
validateRowInRange()
validateColumnInRange()
getRows()
getColumns()
dropRows()
dropColumns()
getValue()
rows()
columns()
isSquare()
isVector()
toArray()
solve()
__get()
__call()
Matrix object.
| __construct(array $grid) X-Ref |
| No description |
| buildFromArray(array $grid) X-Ref |
| No description |
| validateRow(int $row) X-Ref |
| No description |
| validateColumn(int $column) X-Ref |
| Validate that a column number is a positive integer param: int $column return: int |
| validateRowInRange(int $row) X-Ref |
| Validate that a row number falls within the set of rows for this matrix param: int $row return: int |
| validateColumnInRange(int $column) X-Ref |
| Validate that a column number falls within the set of columns for this matrix param: int $column return: int |
| getRows(int $row, int $rowCount = 1) X-Ref |
| Return a new matrix as a subset of rows from this matrix, starting at row number $row, and $rowCount rows A $rowCount value of 0 will return all rows of the matrix from $row A negative $rowCount value will return rows until that many rows from the end of the matrix Note that row numbers start from 1, not from 0 param: int $row param: int $rowCount return: static |
| getColumns(int $column, int $columnCount = 1) X-Ref |
| Return a new matrix as a subset of columns from this matrix, starting at column number $column, and $columnCount columns A $columnCount value of 0 will return all columns of the matrix from $column A negative $columnCount value will return columns until that many columns from the end of the matrix Note that column numbers start from 1, not from 0 param: int $column param: int $columnCount return: Matrix |
| dropRows(int $row, int $rowCount = 1) X-Ref |
| Return a new matrix as a subset of rows from this matrix, dropping rows starting at row number $row, and $rowCount rows A negative $rowCount value will drop rows until that many rows from the end of the matrix A $rowCount value of 0 will remove all rows of the matrix from $row Note that row numbers start from 1, not from 0 param: int $row param: int $rowCount return: static |
| dropColumns(int $column, int $columnCount = 1) X-Ref |
| Return a new matrix as a subset of columns from this matrix, dropping columns starting at column number $column, and $columnCount columns A negative $columnCount value will drop columns until that many columns from the end of the matrix A $columnCount value of 0 will remove all columns of the matrix from $column Note that column numbers start from 1, not from 0 param: int $column param: int $columnCount return: static |
| getValue(int $row, int $column) X-Ref |
| No description |
| rows() X-Ref |
| Returns a Generator that will yield each row of the matrix in turn as a vector matrix or the value of each cell if the matrix is a column vector return: Generator|Matrix[]|mixed[] |
| columns() X-Ref |
| Returns a Generator that will yield each column of the matrix in turn as a vector matrix or the value of each cell if the matrix is a row vector return: Generator|Matrix[]|mixed[] |
| isSquare() X-Ref |
| Identify if the row and column dimensions of this matrix are equal, i.e. if it is a "square" matrix return: bool |
| isVector() X-Ref |
| Identify if this matrix is a vector i.e. if it comprises only a single row or a single column return: bool |
| toArray() X-Ref |
| Return the matrix as a 2-dimensional array return: array |
| solve(Matrix $B) X-Ref |
| Solve A*X = B. param: Matrix $B Right hand side return: Matrix ... Solution if A is square, least squares solution otherwise |
| __get(string $propertyName) X-Ref |
| Access specific properties as read-only (no setters) param: string $propertyName return: mixed |
| __call(string $functionName, $arguments) X-Ref |
| Returns the result of the function call or operation param: string $functionName param: mixed[] $arguments return: Matrix|float |
