Casio Fx 991es Plus Battery
I'm new to this forum!.I arrived this site by surfing in the web looking for an answer, I hope to find it here. I'm about to buy a new scientific calculator, the problem is that I don't know the difference between two models.These are casio Fx 115 ES and casio Fx 991 ES. I downloaded the manuals (they're the same) but.is there any difference between these calculators?.I hope you can tell me Well That's all.Thank you very much in advance DariosI don't know why but they sell them as? X-991ES in Europe and as?x -115ES in the USA. As far as I know, the difference is only in name, not in function.