Comment Re:Sadly, calculus is not all that useful... (Score 1) 134
Machine learning is a field where calculus is used pervasively. How do you do parameter estimation in a neural network? It's the chain rule from calculus. Who is using machine learning? Spam detection (Hotmail, Gmail). Speech recognition, natural language UI (Apple Siri, Google Now). Recommender systems (Amazon, Netflix). Image recognition (Google Goggles).