用Matlab画出x= cos(t)^3;y=sin(t)^3的图像
时间: 2024-05-05 19:21:07 浏览: 125
可以使用以下Matlab代码绘制x=cos(t)^3和y=sin(t)^3的图像:
```
t = linspace(0, 2*pi, 1000);
x = cos(t).^3;
y = sin(t).^3;
plot(x, y);
xlabel('x');
ylabel('y');
title('x=cos(t)^3, y=sin(t)^3');
```
这将产生一个类似于心形的图形,其中x和y都是t的函数。
相关问题
matlab在[0,2*pi]上画x=cos^3(t),y=sin^3(t)星形图。ezplot()
在MATLAB中,你可以使用`ezplot`函数轻松绘制给定区间上的三角函数图形。为了画出x轴为\(\cos^3(t)\)、y轴为\(\sin^3(t)\)的星形图,你需要首先明确`t`是从0到\(2\pi\)的线性间隔,然后传递这两个表达式给`ezplot`。以下是具体的步骤:
```matlab
% 设置t的范围
t = linspace(0, 2*pi, 400); % 使用400个点以获得更平滑的图像
% 定义x和y的表达式
x = cos(t).^3;
y = sin(t).^3;
% 使用ezplot画图并显示结果
figure; % 创建一个新的图形窗口
ezplot(x, y, 'r', 'LineWidth', 2); % 'r'表示红色线条,'LineWidth'设置线宽为2
xlabel('x = \(\cos^3(t)\)');
ylabel('y = \(\sin^3(t)\)');
title('星形轨迹 (0, 2\pi) 上的 \(\cos^3(t)\) 和 \(\sin^3(t)\) 曲线');
grid on; % 添加网格线
```
这将生成一个在\(0\)到\(2\pi\)之间,由\(\cos^3(t)\)和\(\sin^3(t)\)描绘的星形图案。
matlab绘制星形线x=2cos(t)^3,y=2sin(t)^3并绕y轴旋转一圈
可以使用以下代码实现:
```matlab
% 定义参数 t
t = linspace(0, 2*pi, 1000);
% 计算星形线的 x, y, z 坐标
x = 2*cos(t).^3;
y = 2*sin(t).^3;
z = zeros(size(t));
% 旋转一圈并绘制图形
figure;
for i = 1:360
% 绕 y 轴旋转
R = [cosd(i), 0, sind(i); 0, 1, 0; -sind(i), 0, cosd(i)];
XYZ = [x; y; z];
XYZ = R * XYZ;
plot3(XYZ(1,:), XYZ(2,:), XYZ(3,:));
hold on;
end
axis equal;
xlabel('X');
ylabel('Y');
zlabel('Z');
title('Star-shaped curve rotating around Y axis');
```
运行以上代码,就可以得到绘制的星形线绕 y 轴旋转一圈的图像。
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