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Finished up matrix tests and fixed a few bugs

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This commit is contained in:
Jeff Moser
2010-09-03 07:25:55 -04:00
parent 2c5c00f88b
commit 4a76cc34cc
2 changed files with 75 additions and 3 deletions
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18
PHPSkills/Numerics/Matrix.php
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@@ -159,7 +159,7 @@ class Matrix
// The idea is that it's the transpose of the cofactors
$result = array();
for ($currentColumn = 0; $currentColumn < $this->_columns; $currentColumn++)
for ($currentColumn = 0; $currentColumn < $this->_columnCount; $currentColumn++)
{
for ($currentRow = 0; $currentRow < $this->_rowCount; $currentRow++)
{
@@ -185,7 +185,7 @@ class Matrix
return self::scalarMultiply($determinantInverse, $adjugate);
}
public static function scalarMultiply($scalar, $matrix)
public static function scalarMultiply($scalarValue, $matrix)
{
$rows = $matrix->getRowCount();
$columns = $matrix->getColumnCount();
@@ -393,6 +393,20 @@ class DiagonalMatrix extends Matrix
parent::__construct($rowCount, $colCount);
for($currentRow = 0; $currentRow < $rowCount; $currentRow++)
{
for($currentCol = 0; $currentCol < $colCount; $currentCol++)
{
if($currentRow == $currentCol)
{
$this->setValue($currentRow, $currentCol, $diagonalValues[$currentRow]);
}
else
{
$this->setValue($currentRow, $currentCol, 0);
}
}
}
for($i = 0; $i < $diagonalCount; $i++)
{
$this->setValue($i, $i, $diagonalValues[$i]);