1.源程序
clear;
syms theta1 theta2 theta3 theta4
syms l1 l2 l3 l4
eq1 = l1 * sin(theta1) + l2 * sin(theta2) == 0;
eq3 = l1 * cos(theta1) + l2 * cos(theta2) + l3 * cos(theta3)+l4 * cos(theta4) == -110;
eq2 =l3 * sin(theta3) + l4 * sin(theta4) == 0;
[theta2] = solve(eq1, theta2);
[theta2,theta3, theta4] = solve(eq1,eq3,eq2,theta2,theta3, theta4)
2.报错
出错 zuoye8 (line 10)
[theta2,theta3, theta4] = solve(eq1,eq3,eq2,theta2,theta3, theta4)