 		}
 	}
 
-	// MARK: 計算
+	// MARK: - 基本機能
 	
 	public func fillZero() {
 		_FloatBuffer_FillZero(_buffer, Int32(_capacity))

		return _columns
	}

	// MARK: プライベート

	internal var _buffer: Pointer
	internal var _rows: Int
	internal var _columns: Int
	internal var _capacity: Int
	internal var _allocationSize: Int
}

		self.init(src._rows, src._columns)
	}

	public init(referenceOf pointer: Pointer, rows: Int, columns: Int) {

		_rows = rows;
		_columns = columns
		_capacity = rows * columns

		_allocationSize = 0
		_buffer = pointer
	}

	public convenience init(referenceOf src: FloatBuffer, startRow: Int, startColumn: Int, rows: Int, columns: Int) {
		assert(startRow < src._rows)
		assert(startColumn < src._columns)
		assert(startRow * src._columns + startColumn + rows * columns <= src._capacity)
		
		self.init(referenceOf: src._buffer + (startRow * src._columns + startColumn), rows: rows, columns: columns)
	}

	public convenience init(referenceOf src: FloatBuffer, rowIndex: Int) {
