plot the shape of the airfoil in matlab

There are multiple ways to do this in MATLAB. Here is one approach using the "NACA four-digit Airfoil Generator" from MATLAB Central File Exchange:

1. Download the code from this link: https://www.mathworks.com/matlabcentral/fileexchange/37030-naca-four-digit-airfoil-generator
2. Save the code file in your working directory and open it in MATLAB.
3. Define your desired NACA four-digit airfoil using the generator function. This function takes in the four-digit code and other parameters like chord length, number of points, etc. For example, to generate a NACA 2412 airfoil with chord length of 1 meter and 100 data points, use:

main.m
af = naca4gen(2412, 1, 100);
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4. Plot the generated airfoil using the "plot" function. For example:

main.m
plot(af.x, af.y);
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This will create a 2D plot of the airfoil shape. You can customize the plot appearance using various "plot" function parameters.

Note: There are other ways to generate and plot airfoil shapes in MATLAB as well, such as using built-in functions like "cosspace" and "tan" to create point distributions and calculate airfoil coordinates from them. You can also import airfoil data from external sources and plot them in MATLAB.