Before revision: Open source code examples Python library with various implementations can be found here in this this github repository: def main(): # Define x0 -a 1x4 array and then transpose it to be a 4x1  x0 = np.array( 0.0, 0.0, 0.0, 0.0 ).T # x,y,v theta  # Print x0.
After revision: Open source code examples Python library with various implementations can be found here in this this github repository:       # Print x0.