prep for 2023. Fixed many bugs. Added pdf guide

2023-03-29 22:47:51 +02:00
parent 7f97a60334
commit e6025e3be1
589 changed files with 172718 additions and 212 deletions
--- a/vendor/markbaker/matrix/classes/src/Operators/DirectSum.php
+++ b/vendor/markbaker/matrix/classes/src/Operators/DirectSum.php
@@ -0,0 +1,65 @@
+<?php
+
+namespace Matrix\Operators;
+
+use Matrix\Matrix;
+use Matrix\Exception;
+
+class DirectSum extends Operator
+{
+    /**
+     * Execute the addition
+     *
+     * @param mixed $value The matrix or numeric value to add to the current base value
+     * @throws Exception If the provided argument is not appropriate for the operation
+     * @return $this The operation object, allowing multiple additions to be chained
+     **/
+    public function execute($value)
+    {
+        if (is_array($value)) {
+            $value = new Matrix($value);
+        }
+
+        if (is_object($value) && ($value instanceof Matrix)) {
+            return $this->directSumMatrix($value);
+        }
+
+        throw new Exception('Invalid argument for addition');
+    }
+
+    /**
+     * Execute the direct sum for a matrix
+     *
+     * @param Matrix $value The numeric value to concatenate/direct sum with the current base value
+     * @return $this The operation object, allowing multiple additions to be chained
+     * @throws Exception If the provided argument is not appropriate for the operation
+     **/
+    protected function directSumMatrix(Matrix $value)
+    {
+        $originalColumnCount = count($this->matrix[0]);
+        $originalRowCount = count($this->matrix);
+        $additionalColumnCount = $value->columns;
+        $additionalRowCount = $value->rows;
+        $value = $value->toArray();
+
+        for ($row = 0; $row < $this->rows; ++$row) {
+            $this->matrix[$row] = array_merge($this->matrix[$row], array_fill(0, $additionalColumnCount, 0));
+        }
+
+        $this->matrix = array_merge(
+            $this->matrix,
+            array_fill(0, $additionalRowCount, array_fill(0, $originalColumnCount, 0))
+        );
+
+        for ($row = $originalRowCount; $row < $originalRowCount + $additionalRowCount; ++$row) {
+            array_splice(
+                $this->matrix[$row],
+                $originalColumnCount,
+                $additionalColumnCount,
+                $value[$row - $originalRowCount]
+            );
+        }
+
+        return $this;
+    }
+}