test fixes

DataStorage/Database/Query/Grammar/MysqlGrammar.php

@@ -60,6 +60,10 @@ class MysqlGrammar extends Grammar
             $expression = '*';
         }
 
-        return 'SELECT ' . $expression . ' ' . $this->compileFrom($query, $query->from) . ' ' . $this->compileWheres($query, $query->wheres) . ' ORDER BY RAND() ' . $this->compileLimit($query, $query->limit ?? 1);
+        return 'SELECT ' . $expression
+            . ' ' . $this->compileFrom($query, $query->from)
+            . ' ' . $this->compileWheres($query, $query->wheres)
+            . ' ORDER BY RAND() '
+            . $this->compileLimit($query, $query->limit ?? 1);
     }
 }

Math/Matrix/Matrix.php

@@ -759,6 +759,20 @@ class Matrix implements \ArrayAccess, \Iterator
                 $result[$i] = $temp;
             }
 
+            return self::fromArray($result);
+        } elseif (!$isMatrix1 && $isMatrix2) {
+            $result = [];
+            for ($i = 0; $i < $m1; ++$i) { // Row of 1
+                $temp = 0;
+
+                for ($c = 0; $c < $m2; ++$c) { // Row of 2
+                    /** @var array $value1 */
+                    $temp += $value2[$i][$c] * $value1[$c];
+                }
+
+                $result[$i] = $temp;
+            }
+
             return self::fromArray($result);
         }
 

tests/DataStorage/Database/Query/BuilderTest.php

@@ -121,7 +121,7 @@ final class BuilderTest extends \PHPUnit\Framework\TestCase
         $iE = $con->getGrammar()->systemIdentifierEnd;
 
         $query = new Builder($con);
-        $sql   = 'SELECT [a].[test] FROM [a] as b WHERE [a].[test] = 1 ORDER BY \rand() LIMIT 1;';
+        $sql   = 'SELECT [a].[test] FROM [a] as b WHERE [a].[test] = 1 ORDER BY RAND() LIMIT 1;';
         $sql   = \strtr($sql, '[]', $iS . $iE);
         self::assertEquals($sql, $query->random('a.test')->fromAs('a', 'b')->where('a.test', '=', 1)->toSql());
     }

tests/Math/Matrix/MatrixTest.php

@@ -495,7 +495,7 @@ final class MatrixTest extends \PHPUnit\Framework\TestCase
 
     public function testDotVectors() : void
     {
-        $v1 = Vector::fromArray([1, 3, -5]);
+        $v1 = Vector::fromArray([1, 3, -5])->transpose();
 
         self::assertEquals(
             3,