Anki Decks
Anki (from the Japanese「暗記」, meaning "memorization") is a very versatile open-source SRS (Spaced Repetition System) flashcard program, particularly useful for the study of foreign languages. Here I share some of my personal decks:
vokabular.apkg: A 584-card deck made out of the German-English vocabulary at the end of Edmund Landau's 4th edition "Grundlagen der Analysis" (New York: Chelsea Publishing, 1965). This is a classical book recommended for students seeking to learn mathematical German.
Familiarity with the contents of Genki I & II is enough to make the following decks useful:
Heisig 漢字 [xx_10].apkg: A bundle of 11 decks totalling 2042 cards (separated into 10 decks of 200 + 1 deck of 42) consisting of the Kanji listed in James W. Heisig's 4th edition "Remembering the Kanji vol. I" (Tokyo: Japan Publications Trading Co., Ltd., 2001), maintaining the order of the book but excluding pure primitive elements.
en-ja_zagier.apkg: A 471-card deck made out of Don Zagier's "English-Japanese dictionary for mathematical terminology", Japan Intelligencer, Springer-Verlag (1990), pp. 74-77.