绘制参数方程

clc; 
clear; 
close all;

axis_length = 100;

% 定义参数t的范围
t = 0:0.01:100;

% 计算x和y的值
x = t.^2 + 1;
y = 4*t - t.^2;

% 绘制函数图像
plot(x, y);
xlabel('x');
ylabel('y');
title('Plot of the curve x=t^2+1, y=4t-t^2');
grid on;

% 设置 x 轴和 y 轴的范围
xlim([-axis_length, axis_length]); 
ylim([-axis_length, axis_length]); % 显示坐标轴 x 轴和 y 轴

绘制结果