No, you’re actually just repeating what I meant. Applications that need those functionalities typically don’t have to implement those pieces of logic from scratch—it’s often consumed from a lower level library.
Oh! I see what you mean. In that case, the book is probably not targeted at programmers at all, though nothing stops you from pursuing it. Design of coding schemes is a discipline of its own. Sort of like writing a simulation software. Implementing the software will need programming skills. But the design of the numerical algorithms is more in line with physics and mathematics than programming.
