Cubic spline difference method for heat conduction

This study established a new computing method for the cubic spline difference. This method is characterized by the simplicity of the finite difference method through discussion of various heat conduction problems, but does not have complex computation of traditional cubic spline method. Therefore, on condition that load of the calculator is not increased, precision of its numerical result is increased by two orders, as compared with the finite difference method, and it is very suitable for solving related heat conduction problems in the future.