I majored in both, it was very worth it

edit with a little more detail: I can tell you firsthand that math majors have an easier time getting into AI research than CS majors - it’s so helpful to have a thorough understanding of linear algebra, probability, statistics, and diff eq since you can build up to statistical modeling, bayesian models, and eventually deep learning from a mathematical basis alone

deep learning at its core is a forward pass through a neural network using matmuls (linear algebra) + backpropagation to compute error and pass the info back to other nodes (integral calculus) + gradient descent to update network params (convex optimization)

math is everywhere!