Welcome to the world of JAX, where differentiation happens automatically, faster than a caffeine-fueled coder at 3 a.m.! In this post, we’re going to delve into the concept of Automatic Differentiation (AD), a feature at the heart of JAX, and we’ll explore why it’s such a game changer for machine learning, scientific computing, and any other context where derivatives matter. The popularity of JAX has been increasing lately, thanks to the emerging field of scientific machine learning powered by differentiable programming.

But hold on — before we get too deep, let’s ask the basic questions.

• What is JAX?
• Why do we need automatic differentiation in the first place?
• And most importantly, how is JAX making it cooler (and easier)?

Don’t worry; you’ll walk away with a smile on your face and, hopefully, a new tool in your toolkit for working with derivatives like a pro. Ready? Let’s dive in.

What Exactly is JAX?

JAX is a library developed by Google designed for high-performance numerical computing and machine learning research. At its core, JAX makes it incredibly easy to write code that is differentiable, parallelizable, and compiled to run on hardware accelerators like GPUs and TPUs. The OG team…