import numpy as np

grid = np.array([[10, 20, 30], [40, 50, 60]])
flat = grid.flatten()
column_order = grid.flatten(order="F")
raveled = grid.ravel()

print("shape:", grid.shape)
print("flat:", flat.tolist())
print("flat shape:", flat.shape)
print("order F:", column_order.tolist())
print("flatten shares memory:", np.shares_memory(grid, flat))
print("ravel shares memory:", np.shares_memory(grid, raveled))

flat[0] = -1
print("after flatten edit:", grid.tolist())

raveled[1] = 999
print("after ravel edit:", grid.tolist())