SEMICONDUCTOR INTEGRATED CIRCUIT APPARATUS

A semiconductor integrated circuit apparatus 23 is used for obtaining an optimum solution using an Ising model, and the semiconductor integrated circuit apparatus 23 includes plural spin cells 1 that are connected with each other. Here, each spin cell 1 includes: a memory cell 9(N) for memorizing a spin value; a computing circuit 10 for computing interactions among the plural spin cells that are connected with each other; a memory circuit 4 for holding at least one-bit data; and an inversion logic circuit LG capable of modifying a computed result obtained by the computing circuit in accordance with data held by the memory circuit 4. The computed result modified by a modification circuit in accordance with the data held by the memory circuit is memorized in the memory cell 9(N) included in each spin cell 1.