Acknowledgments
I thank the people and organizations that directly or indirectly provided me with their mathematical assistance, without which this book would have no foundation.
I thank soft music, to which I often listen for relieving stress and anxiety; I thank Esperanto, which I like to use to name files; I thank , by which I am able to write mathematical formulae rapidly; I thank Visual Studio Code, which is a modern and gook-looking editor; I thank the Vim emulator, with which I work much more efficiently; I thank Windows 11 Pro for Workstations Insider Preview (in the Canary Channel), which is a reliable and stable operating system.
It is true that I have spent much money and time on the project: I need money to advertise this book; I need time to proofread this book. Hence, I also thank my money and time.
Finally, never will I forget to thank my wives, whom I have not met yet. Hardly would I have the stimulus actually to write this book without them.