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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Ibn 'Adlan ： ウィキペディア英語版 Ibn 'Adlan ʻAlī ibn ʻAdlān ((アラビア語:علي بن عدلان); 1187–1268 CE) was born in Mosul and is best known for his early contributions to cryptanalysis for which he dedicated more than one book. He was also involved in literature and poetry.〔Series on Arabic Origins of Cryptology (Series Eds. M. Mrayati, Y. Meer Alam and M. H. at_Tayyan), published by King Faisal Center for Research and Islamic Studies (KFCRIS) & King Abdulaziz City for Science and Technology (KACST), Riyadh. Vol. 2, ibn `Adlān's Treatise al-mu'allaf lil-malik al-'Ašraf, ISBN 9960-890-18-X, 2004, 113 pp., 17 × 24 cm, softcover.〕 Ibn 'Adlan was educated in Baghdad and lived in Damascus and Cairo.〔 ==Cryptanalysis== His two major works on cryptanalysis were ''Al-mu'lam'' and ''Al-mu'allaf lil-malik al-'Asraf''. One of his most important contributions was on sample size for use of frequency analysis. He believed that the cryptogram "should be at least 90 letters long and that each of the 28 letters of Arabic should be represented at least three times". 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ibn 'Adlan」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.