'An invaluable companion for anyone who wants a deep understanding of what’s under the hood of often inscrutable machines' Melanie MitchellA rich, narrative explanation of the mathematics that has brought us machine learning and the ongoing explosion of artificial intelligence.Machine-learning systems are making life-altering decisions for us: approving mortgage loans, determining whether a tumour is cancerous, or deciding whether someone gets bail. They now influence discoveries in chemistry, b...