Here's why Nvidia may be one of the most undervalued artificial intelligence (AI) stocks.With a market cap of about $4.5 trillion, Nvidia (NVDA 3.27%) is the largest company on the planet. However, it might also just be the most undervalued artificial intelligence (AI) stock right now, too.But don't a lot of pundits say Nvidia is overvalued? That's true; however, most claims that Nvidia is overvalued stem from its trailing price-to-earnings (P/E) of around 45.5 times, which on the surface is high. Yet, base ...