程序exn712 %给原始参数赋值 G1=200;G2=100;L1=2;L2=sqt(2); %将度化为弧度 theta1 =30*pi/180;theta2 =45*pi/180; %则按此次序，系数矩阵A,B可写成下式 A=[1,0,0,0,1,0;0,1,0,0,0,1;0,0,0,0,-sin(theta1), c0s(theta1);0,0,1,0,-1,0;0,0,0,1,0,-1;. 0,0,0,0,sin(theta2),cos(theta2)] B=[0;G1;G1/2*cos(theta1);0;G2;-G2/2*cos(theta2)] X=AlB; %用左除求解线性方程组 程序exn712 %给原始参数赋值 G1=200; G2=100; L1= 2; L2 = sqrt (2) ; % 将度化为弧度 theta1 =30*pi/180; theta2 = 45*pi/180; % 则按此次序，系数矩阵A,B可写成下式 A=[1,0,0,0,1,0;0,1,0,0,0,1;0,0,0,0,-sin(theta1),... cos(theta1); 0,0,1,0,-1,0;0,0,0,1,0,-1;... 0,0,0,0, sin(theta2),cos(theta2)] B=[0;G1;G1/2*cos(theta1);0;G2;-G2/2*cos(theta2)] X = A\B; %用左除求解线性方程组