The difficulty in decomposing rational function into partial fraction is to fix the undeterminedcoefficient in partial fraction.
将有理函数分解为部分分式的难点就是确定部分分式中的待定系数。
2
By using the undeterminedcoefficient method, a new scheme is derived from the HAUC2 scheme to simulate the two dimensional convection-diffusion equation.
运用待定系数法，建立了求解二维对流扩散方程的HAUC2格式。
3
The undeterminedcoefficient of the model is selected by using the orthogonal optimum seeking method, thereby the quantitative relation of the model is determined.