joukowsky_transform, a Python code which applies the Joukowsky transform to data, mapping between a circle in the complex plane and various airfoil shapes.
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
joukowsky_transform is available in a Python version.
bird_egg, a Python code which evaluates some formulas for the shapes of bird eggs.
cosine_transform, a Python code which demonstrates some simple properties of the discrete cosine transform (DCT).
haar_transform, a Python code which computes the Haar transform of 1d or 2d data.
naca, a Python code which takes the parameters of certain NACA airfoils and return the coordinates of a sequence of points that outline the wing shape. The data is displayed graphically.
polyomino_transform, a Python code which applies reflection and rotation transforms to the matrix that represents a polyomino.
sftpack, a Python code which implements the slow Fourier transform, intended as a teaching tool and comparison with the Fast Fourier Transform (FFT).
sine_transform, a Python code which demonstrates some simple properties of the discrete sine transform.
