AdriWeb, thanks for your reply and to test it on LuaJIT. Your answer is correct for n=10. It is the same as we get in all other calculators using the programmed method. All my Tis, HPs and Other Casios did it well too (even my brave fx-700p from the early 80s did it... the beauty take its 8 minutes ...

Bonjour! J'espère que vous allez tous bien. Je suis brésilien et je ne parle pas Français. Je m'excuse et si vous me le permettez, j'écrirai en Anglais dans ce post. Also, sorry for my bad English too - I'm a Portugues native speaker. I hope that this forum is active, in order to us talk about this ...