In year 2019, I worked mainly on methods for solving a large linear system. The required algorithms belong to the mathematics of the third kind. When tasks are set by a human and compiles algorithms to solve them personally it is mathematics of the first kind. When the tasks are set by a man and he compiles an algorithm that the computer uses them, it is mathematics of the second kind. When only a computer can pose a problem and then solve it then it is a mathematics of the third kind. For example: set and solve a million equations with a million unknowns.