No: the person who implements the method is certainly working alongside (or has handy) a say, mathematician/physicist/specialist in numeric computation. I would not ask "just an Engineer" (no offense) to understand how to properly implement such type of methods (mostly because they are full of special cases which require a specialist).

Hope you make the jump to that job, which is surely interesting (and pretty hard).

Thanks.

> Are you going to be the user who calls the MATLAB function, or the engineer who implements a specific iterative method, optimizes it for new hardware, and so on?

99% of engineers will be in the former.

Of the remaining 1% who would like to be the ones implementing this stuff, about 90% will not get the job that lets them do it.

Of those who do get that job, likely over 50% of them will hate it.

Speaking as one who's been through all of this.

Finally an honest answer.