I've spent all day working with Phi. I am quite charmed to: - log into HN. - see an article about it being a giveaway for math teachers to make lesson plans.

I've spent all day working with Phi. I am quite charmed to: - log into HN. - see an article about it being a giveaway for math teachers to make lesson plans. - see someone asserting it is an individual math tutor capable of evaluating answers and giving detailed feedback