The book is actually quite far from theoretical computer science, it is much more closer to a introductory book on numerical analysis and statistics for applica

The book is actually quite far from theoretical computer science, it is much more closer to a introductory book on numerical analysis and statistics for applications, which I find is quite in line with a book called "Foundations of Data Science". A bachelor's degree in applied mathematics usually covers around 70% of the book, with the rest being a bit of statistics (mostly around statistical learning and stochastic processes) and some sprinkles of discrete mathematics.