figure; %坐标轴范围 xlim([-5 5]); ylim([-5 5]); zlim([-55]); % 显示坐标 quiver3(,0,0,4,0,0,'r','LineWidth',2,'MaxHeadSize',0.5); % x轴 quiver3(0,0,0,0,4,0,'g','LineWidth',2,'MaxHeadSize',0.5); % y轴 quiver3(0,0,0,0,0,4,'b','LineWidth',2,'MaxHeadSize',0.5); % z轴 xlabel('X'); ylabel('Y'); zlabel('Z'); grid on;运行提示：未定义函数或变量 'A_M_Three'。

抱歉，我之前回复的代码中有误差。以下是正确的示例代码：

figure;
% 坐标轴范围
xlim([-5 5]);
ylim([-5 5]);
zlim([-5 5]);
% 显示坐标轴
quiver3(0,0,0,4,0,0,'r','LineWidth',2,'MaxHeadSize',0.5); % x轴
quiver3(0,0,0,0,4,0,'g','LineWidth',2,'MaxHeadSize',0.5); % y轴
quiver3(0,0,0,0,0,4,'b','LineWidth',2,'MaxHeadSize',0.5); % z轴
xlabel('X');
ylabel('Y');
zlabel('Z');
grid on;

这个代码将显示一个带有红色、绿色和蓝色箭头的三维坐标轴。您可以根据需要进行修改和调整。