Ole Immanuel Franksen

Indeholder "Foreword by H. H. Goldstine", "Prologue", "The Philosophy of Decyphering", "1.1 A List of Works", "1.2 Expert Witness", "1.3 From Authoritative Sources", "1.4 Royal Correspondence", "1.5 From Babbage's Library", "1.6 APL Terminal Session", "Between Mathematics and Reality", "2.1 The Philosophy of Analysis", "2.2 The Principle of Permanence of Form", "2.3 A Question of Relative Position", "2.4 Geometrically Speaking", "2.5 It Began With ABC", "2.6 Metric Versus Non-Metric", "2.7 According to Professor Petersen", "2.8 Pinning Down an Invariant", "2.9 The Erlanger Program", "2.10 The Scaling of Data", "2.11 Up to an Ordinal Scale", "2.12 APL Terminal Session", "A Conservation Law of the Message", "3.1 Language is Pattern", "3.2 I. B. Lindenfels, a Major in Frederik VI's Army", "3.3 The Vigenère Cipher", "3.4 How to Impale a Law", "3.5 Laws on Laws", "3.6 Foreign Supremacy", "3.7 APL Terminal Session", "Epilogue", "Notes, References and Acknowledgements", " The Philosophy of Decyphering", " Between Mathematics and Reality", " A Conservation Law of the Message".

"Foreword by H. H. Goldstine" handler om ???
"Prologue" handler om ???
"The Philosophy of Decyphering" handler om ???
"1.1 A List of Works" handler om ???
"1.2 Expert Witness" handler om ???
"1.3 From Authoritative Sources" handler om ???
"1.4 Royal Correspondence" handler om ???
"1.5 From Babbage's Library" handler om ???
"1.6 APL Terminal Session" handler om ???
"Between Mathematics and Reality" handler om ???
"2.1 The Philosophy of Analysis" handler om ???
"2.2 The Principle of Permanence of Form" handler om ???
"2.3 A Question of Relative Position" handler om ???
"2.4 Geometrically Speaking" handler om ???
"2.5 It Began With ABC" handler om ???
"2.6 Metric Versus Non-Metric" handler om ???
"2.7 According to Professor Petersen" handler om ???
"2.8 Pinning Down an Invariant" handler om ???
"2.9 The Erlanger Program" handler om ???
"2.10 The Scaling of Data" handler om ???
"2.11 Up to an Ordinal Scale" handler om ???
"2.12 APL Terminal Session" handler om ???
"A Conservation Law of the Message" handler om ???
"3.1 Language is Pattern" handler om ???
"3.2 I. B. Lindenfels, a Major in Frederik VI's Army" handler om ???
"3.3 The Vigenère Cipher" handler om ???
"3.4 How to Impale a Law" handler om ???
"3.5 Laws on Laws" handler om ???
"3.6 Foreign Supremacy" handler om ???
"3.7 APL Terminal Session" handler om ???
"Epilogue" handler om ???
"Notes, References and Acknowledgements" handler om ???
" The Philosophy of Decyphering" handler om ???
" Between Mathematics and Reality" handler om ???
" A Conservation Law of the Message" handler om ???

Ole Immanuel Franksen beskriver Babbage's forsøg på at lave computeriseret kodeknækning.

queens←{⍵{((+/b)⌿⍵),⍺|(,b)/⍳×/⍴b←~↑(⊂⍳⍺)∊¨(↓⍵)+[0]¨⊂(c-⍳c←1↓⍴⍵)∘.ׯ1 0 1}⍣⍵⍳1 0}… (mais)