Totally silly question really but I've always read ln as log as it is just log to the base e. All my A level students pronounce it 'lun' as that is what their teachers say. It's many years since I got my degree in maths but I'm sure we just called natural log, log! Am I wrong? I know a bit like Trigger once you get used to calling something by the wrong name it is hard to stop. Is ln(x) read as log x or lun x?