Using an SN P System to Compute the Product of Any Two Decimal Natural Numbers

In this paper, a new SN P system is investigated in order to compute the product of any two decimal natural numbers. Firstly, an SN P system with two input neurons is constructed, which can be used to compute the product of any two binary natural numbers which have specified lengths. Secondly, the correctness of the SN P system is proved theoretically. However, the system can only be used to compute the product of any two binary natural numbers, but the product of any two decimal natural numbers often need to be computed in practical application. Therefore, it is necessary to construct a coding SN P system which converts a decimal number into a binary number and to construct a decoding SN P system which converts a binary number to a decimal number. In the end, an new SN P system is constructed to compute the product of any two decimal natural numbers. An example test shows that the SN P system can be used to compute the product of any two decimal natural numbers. Therefore, this paper provides a new method for constructing the SN P system which can compute the product of any two natural numbers.