For sure it is! The odd thing with what I listed is that these methods (nowadays) are really mostly useful for massive sparse problems, which wouldn’t really b

For sure it is! The odd thing with what I listed is that these methods (nowadays) are really mostly useful for massive sparse problems, which wouldn’t really be practical without computing machines. I’m pretty sure the Chebyschev semi-iterative method for solving linear systems is just named after his polynomials (and you can use his polynomials by hand for other stuff), but I really am at a loss as to what Krylov was up to.