A control system for an internal combustion engine, which can determine just enough amounts of demanded combustion fuel and auxiliary fuel during execution of auxiliary fuel supply, for improvement of fuel economy and drivability and the emission-reducing capability of a catalyst. An offset is added to a rotational state signal. A tab through-hole is provide to penetrate the electrical conductive material and printed substrate. By selecting a category in the interface, the user can subscribe to a data category and access the data therein. This metal fine particles are manufactured by this method for manufacturing metal fine particles, and have a major axis of 400 nm or less, a minor axis of 15 nm or less, and an aspect ratio of more than 1.