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Simplifying some casts

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This commit is contained in:
Jens True
2025-05-12 09:40:44 +00:00
parent bd9fccb87b
commit d729caac1f
2 changed files with 13 additions and 13 deletions
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24
src/Numerics/Matrix.php
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@ -130,10 +130,10 @@ class Matrix
// | a b |
// | c d |
// The determinant is ad - bc
$a = (float)$this->getValue(0, 0);
$b = (float)$this->getValue(0, 1);
$c = (float)$this->getValue(1, 0);
$d = (float)$this->getValue(1, 1);
$a = $this->getValue(0, 0);
$b = $this->getValue(0, 1);
$c = $this->getValue(1, 0);
$d = $this->getValue(1, 1);
return $a * $d - $b * $c;
}
@ -148,7 +148,7 @@ class Matrix
// I expand along the first row
for ($currentColumn = 0; $currentColumn < $this->columnCount; ++$currentColumn) {
$firstRowColValue = (float)$this->getValue(0, $currentColumn);
$firstRowColValue = $this->getValue(0, $currentColumn);
$cofactor = $this->getCofactor(0, $currentColumn);
$itemToAdd = $firstRowColValue * $cofactor;
$result += $itemToAdd;
@ -201,7 +201,7 @@ class Matrix
public function getInverse(): Matrix|SquareMatrix
{
if (($this->rowCount == 1) && ($this->columnCount == 1)) {
return new SquareMatrix(1.0 / (float)$this->getValue(0, 0));
return new SquareMatrix(1.0 / $this->getValue(0, 0));
}
// Take the simple approach:
@ -240,9 +240,9 @@ class Matrix
for ($currentRow = 0; $currentRow < $left->getRowCount(); ++$currentRow) {
for ($currentColumn = 0; $currentColumn < $right->getColumnCount(); ++$currentColumn) {
$resultMatrix[$currentRow][$currentColumn] =
(float)$left->getValue($currentRow, $currentColumn)
$left->getValue($currentRow, $currentColumn)
+
(float)$right->getValue($currentRow, $currentColumn);
$right->getValue($currentRow, $currentColumn);
}
}
@ -268,8 +268,8 @@ class Matrix
$productValue = 0.0;
for ($vectorIndex = 0; $vectorIndex < $left->getColumnCount(); ++$vectorIndex) {
$leftValue = (float)$left->getValue($currentRow, $vectorIndex);
$rightValue = (float)$right->getValue($vectorIndex, $currentColumn);
$leftValue = $left->getValue($currentRow, $vectorIndex);
$rightValue = $right->getValue($vectorIndex, $currentColumn);
$vectorIndexProduct = $leftValue * $rightValue;
$productValue += $vectorIndexProduct;
}
@ -339,8 +339,8 @@ class Matrix
for ($currentColumn = 0; $currentColumn < $this->columnCount; ++$currentColumn) {
$delta =
abs(
(float)$this->getValue($currentRow, $currentColumn) -
(float)$otherMatrix->getValue($currentRow, $currentColumn)
$this->getValue($currentRow, $currentColumn) -
$otherMatrix->getValue($currentRow, $currentColumn)
);
if ($delta > self::ERROR_TOLERANCE) {