create an oval shape in a figure in matlab

To create an oval shape in a figure in MATLAB, you can use the ellipse function from the the MATLAB File Exchange:

main.m
% Define the center and radii of the ellipse
x0 = 0;
y0 = 0;
a = 5;
b = 3;

% Define the angle to rotate the ellipse (in degrees)
theta = 30;

% Define the number of points to use to plot the ellipse
N = 100;

% Compute the x and y coordinates of the ellipse
[x, y] = ellipse(x0, y0, a, b, theta, N);

% Plot the ellipse
plot(x, y);
axis equal;  % Use equal scaling on both the x and y axes
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This code defines the center (x0, y0) and the radii a and b of the ellipse. It also defines the angle theta to rotate the ellipse (in degrees) and the number of points N to use to plot the ellipse. The ellipse function computes the x and y coordinates of the ellipse, given these parameters.

The resulting ellipse is then plotted using the plot function. The axis equal command ensures that the x and y axes are scaled equally so that the ellipse appears as a true oval.