1
2
4 3
56
7
y=a1*sin(x1)+a2*cos(x2)+a3*cot(x3) y=a1*x1+a2*x2+a3*x3+a4*x4+b
(1)数值计算-2
(常微分方程求解)(矩阵求逆)(求矩阵特征值)
-2