plot an arrow in matlab in matlab

You can use the "annotation" function in MATLAB to plot an arrow. Here is an example code that demonstrates the usage of the "annotation" function to plot an arrow:

main.m
% Specify the start and end points of the arrow
start_point = [0,0];
end_point = [2,2];

% Create a figure
figure;
hold on;

% Plot the line
plot([start_point(1), end_point(1)], [start_point(2), end_point(2)], 'b', 'LineWidth', 2);

% Add an arrow to the plot
annotation('arrow', [0.5, 0.5], [0.5, 0.5], 'HeadLength', 20, 'HeadWidth', 20);

% Set the axis limits
xlim([-1, 3]);
ylim([-1, 3]);

% Add a title to the plot
title('Arrow plot using annotation function');
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In this example, we first specify the start and end points of the arrow. Then, we create a figure and plot the line connecting the start and end points. Finally, we add an arrow to the plot using the "annotation" function with the 'arrow' option. We also set the properties of the arrow, such as the head length and head width. Note that the annotation function uses relative coordinates, hence [0.5, 0.5] refers to the center of the plot. The resulting plot will have a blue line with an arrow at the end pointing from the start to the end point.