History of Reading on Pairs and Pair Structures

February 21, 1997 [Henry Walker and John Stone]

• Created

March 17, 2000 [John Stone]

• Last update of the Walker/Stone version.
• This version available at http://www.cs.grinnell.edu/~stone/courses/scheme/spring-2000/pairs.xhtml.

Monday, 18 September 2000 [Sam Rebelsky]

• Reformatted
• Added a few notes
• Removed problems (now in separate lab)
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2000F/Readings/pairs.html.

Sunday, 18 February 2001 [Sam Rebelsky]

• Reformatted slightly.
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2001S/Readings/pairs.html.

Saturday, 28 September 2002 [Samuel A. Rebelsky]

• Reinserted images that got lost in transition between courses (thanks Phil).
• Corrected a typo.

Monday, 30 September 2002 [Samuel A. Rebelsky]

• Renamed sum-of-pair-structure to sum-of-number-tree.
• Added introductory documentation for sum-of-number-tree.
• Added links to prior versions.
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2002F/Readings/pairs.html.

Tuesday, 11 February 2003 [Samuel A. Rebelsky]

• Reformatted slightly.
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS153/2003S/Readings/pairs.html.

Thursday, 24 February 2003 [Samuel A. Rebelsky]

• Did absolutely nothing but move it back to the CS151 course web.
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2003S/Readings/pairs.html.

Thursday, 5 October 2006 [Samuel A. Rebelsky]

• Added link to PDF version.
• Moved history to a separate file.
• Added final section on why we study pairs.
• A few minor other updates.
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2006F/Readings/pairs.html.

Sunday, 11 February 2007 [Samuel A. Rebelsky]

• Rearranged introductory text.
• Added note about trees.
• Other, minor, updates.
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2007S/Readings/pairs.html.