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;
    }
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;
    }
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 ; }
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
Execute the direct sum for a matrix