“…e study of fractional calculus can be dated back to 1695, and the fractional operator concept was put forward by Leibnitz, which did not acquire sufficient attention for a long period since it is complicated. Many actual systems can be described by fractional-order differential equations, making the slowly developed fractional calculus be a renewal of interest [1][2][3][4][5]. Generally speaking, fractional calculus is a generalization of classical calculus and is more accurate to describe reality models compared to the corresponding integer-order calculus in different research communities, such as particle physics, wave mechanics, electrical systems, and computational methods for mathematical physics, and many references cited therein [6][7][8][9].…”