https://aiwithr.github.io/fde_book/ 2026-11-02 https://aiwithr.github.io/fde_book/fde-field-manual/ 2026-11-02 https://aiwithr.github.io/fde_book/appendix/ 2026-11-02 https://aiwithr.github.io/fde_book/chapter-1/ 2026-11-02 https://aiwithr.github.io/fde_book/chapter-2/ 2026-11-02 https://aiwithr.github.io/fde_book/chapter-3/ 2026-11-02 https://aiwithr.github.io/fde_book/chapter-4/ 2026-11-02 https://aiwithr.github.io/fde_book/chapter-5/ 2026-11-02 https://aiwithr.github.io/fde_book/conclusion/ 2026-11-02 https://aiwithr.github.io/fde_book/intro/ 2026-11-02