The Third Level of the Test in Color Coordination
I have memorized the contents of "Color Coordinate System (表色系)" by today.
Reading Python for Finance
I finished to check the code up to "11.1 Approximation (近似)".
When using multiprocessing from Jupyter, the function to be passed must be defined in another module to complete the process. However, it seems to be OK to pass a Numba function defined in the notebook. I gave up on passing Cython functions to multiprocessing this time. This is the first time I used Cython, and I don't know how to use it outside of Jupyter yet.