matlab调用ChatGPT保姆级教程

how to make a figure and plot z=sin(x)*cos(y) for x=-pi to + pi and y = -pi to +pi using matlab?

import matlab.net.*
import matlab.net.http.*

umesges  = "how to make a figure and plot z=sin(x)*cos(y) for x=-pi to + pi and y = -pi to +pi using matlab";
mesges   = [struct('role',"system", ...
                   'content',"You are a helpful assistant."); struct('role',"user",'content',umesges)];

apiurl   = "https://api.openai.com/v1/chat/completions";
apikey   = "此处为你自己的api-keys";

% 定义请求消息
querymsg = struct('model',"gpt-3.5-turbo",...
                  'messages',mesges, ...
                  'max_tokens',1000,...
                  'temperature',0.75);
% 请求头
headers  = HeaderField('Content-Type', 'application/json',...
                       'Authorization', "Bearer " + apikey);
% 请求消息
request  = RequestMessage('post',headers,querymsg);

response = send(request, URI(apiurl));

if response.StatusCode == "OK"
    responseText = response.Body.Data.choices(1).message;
    responseText = string(responseText.content);
    responseText = strtrim(responseText);
    disp(responseText);
else
    responseText = "Error ";
    responseText = responseText + response.StatusCode + newline;
    responseText = responseText + response.StatusLine.ReasonPhrase;
end

Sure, you can use the following code to create a figure and plot the function z=sin(x)*cos(y) in MATLAB:

```
% Define the range of x and y values
x = linspace(-pi, pi, 100);
y = linspace(-pi, pi, 100);

% Create a grid of x and y values
[X, Y] = meshgrid(x, y);

% Compute the function z=sin(x)*cos(y)
Z = sin(X).*cos(Y);

% Create a new figure
figure();

% Plot the function using surf function
surf(X, Y, Z);

% Set the color map to 'jet'
colormap('jet');

% Add a color bar
colorbar();

% Add labels for the axes and title
xlabel('x');
ylabel('y');
zlabel('z');
title('z = sin(x)*cos(y)');
```
This code will create a 3D plot of the function z=sin(x)*cos(y) for x=-pi to + pi and y = -pi to +pi, with x, y, and z axes labeled and a color bar indicating the values of z. You can customize the plot further by adjusting the grid size, color map, and other plot properties as needed.