History of List Recursion Lab

Tuesday, 2 September 1997 [John David Stone]

• Created.

Friday, 17 March 2000 [John David Stone]

• Last revised by Mr. Stone
• This version available as http://www.cs.grinnell.edu/~stone/courses/scheme/spring-2000/recursion-with-lists.xhtml,

Monday, 11 September 2000 [Samuel A. Rebelsky]

• Removed narrative (placed in separate reading).
• Titled and reformatted problems.

Tuesday, 12 September 2000 [Samuel A. Rebelsky]

• Added a few more problems
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2000F/Labs/recursion1.html.

Wednesday, 14 February 2001 [Samuel A. Rebelsky]

• Reformatted and made slight changes to the text of some problems.

Sunday, 18 February 2001 [Samuel A. Rebelsky]

• Fixed a typo in the exercise on types.

Monday, 19 February 2001 [Samuel A. Rebelsky]

• Updated the final problem so that there's more deep nesting. (Thanks Katherine!)
• Fixed another typo.

Friday, 23 February 2001 [Samuel A. Rebelsky]

• Updated the output from that problem (thanks Ananta).
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2001S/Labs/recursion1.html.

Tuesday, 24 September 2002 [Samuel A. Rebelsky]

• Reformatted slightly.
• Got rid of the nasty quoted lists.
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2002F/Labs/recursion1.html.

Wednesday, 29 January 2003 [Samuel A. Rebelsky]

• Reformatted slightly.
• Added some examples for product.
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS153/2003S/Labs/recursion.html.

Thursday, 13 February 2003 [Samuel A. Rebelsky]

• Created separate history page to accomodate growing history.
• Removed a few problems to insert them into a separate introduction to recursion lab.
• Added summary.
• Renamed selected procedures (element? to member? and count-odds to tally-odds).
• Added example output for member?, tally-skips, tally-odds, and odds.
• Moved types to optional work.
• Retitled.

Monday, 17 February 2003 [Samuel A. Rebelsky]

• Renamed filter-out-skips to remove-skips.
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2003S/Labs/list-recursion.html.

Tuesday, 23 September 2003 [Samuel A. Rebelsky]

• Removed extra problem on typing lists of values.
• Added an extra problem asking for an alternative version of member?.
• Added the riffling problem, which was taken and modified from http://www.cs.grinnell.edu/~gum/courses/151/labs/recursion-with-lists.xhtml.
• Added a followup problem.
• Added some more examples (particularly for gaps and all-in-range?).
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2003F/Labs/list-recursion.html.

Monday, 11 September 2006 [Samuel A. Rebelsky]

• Added link to PDF version.
• Added the unriffling lists extra problem (taken from http://www.cs.grinnell.edu/~stone/courses/scheme/labs/recursion-with-lists.xhtml.
• Other minor cleanup.
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2006F/Labs/list-recursion.html.

Sunday, 11 February 2007 [Samuel A. Rebelsky]

• Added suggestions to copy a few procedures to the library file.
• Other, minor, cleanup.
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2007S/Labs/list-recursion.html.