History of Numeric Recursion Lab

3 February 2000 [John David Stone]

• Created.

Friday, 15 February 2000 [John David Stone]

• Last modified by John Stone.

Tuesday, 12 September 2000 [Samuel A. Rebelsky]

• Extracted problems (presumably from an earlier version).

Friday, 15 September 2000 [Samuel A. Rebelsky]

• Removed one question (odd-prod, which requires you to write a precondition)
• Added the first Count to question.
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2000F/Labs/recursion2.html.

Sunday, 18 February 2001 [Samuel A. Rebelsky]

• Reformatted slightly.
• Added code for count-from.
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2001S/Labs/recursion2.html.

Friday, 27 September 2002 [Samuel A. Rebelsky]

• Reformatted.
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2002F/Labs/recursion2.html.

Thursday, 30 January 2003 [Samuel A. Rebelsky]

• Reformatted slightly.
• Added examples to various problems.

Friday, 31 January 2003 [Samuel A. Rebelsky]

• Fixed erroneous output in one of the examples added yesterday.
• Added For those who finish early.
• Clarified the first problem.
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS153/2003S/Labs/numeric-recursion.html..

Sunday, 16 February 2003 [Samuel A. Rebelsky]

• Validated HTML.
• Moved history to a separate document (this document).

Wednesday, 19 February 2003 [Samuel A. Rebelsky]

• Added some extra questions for those with extra time.
• The digit-of? problem was taken from http://www.math.grinnell.edu/~gum/courses/151/labs/recursion-with-integers.xhtml by Ben Gum and John David Stone.
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2003S/Labs/numeric-recursion.html.

Monday, 29 September 2003 [Samuel A. Rebelsky]

• Added summary.
• Minor updates to text.
• Added a few examples.
• Added exercise 8, which I found in Ben Gum's most recent lab on numeric recursion, available on the Web at http://www.cs.grinnell.edu/~gum/courses/151/labs/recursion-with-integers.xhtml.
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2003F/Labs/numeric-recursion.html.

Monday, 11 September 2006 [Samuel A. Rebelsky]

• Added link to PDF version.
• Minor cleanup.
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2006F/Labs/numeric-recursion.html.

Tuesday, 13 February 2007 [Samuel A. Rebelsky]

• Added a few notes to help students.
• Added instructions to add particular procedures to libraries.
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2007S/Labs/numeric-recursion.html.

Tuesday, 9 October 2007 [Samuel A. Rebelsky]

• Began update for the new media computation CSC151.
  • Started to add the helper code for spots.
  • Started to remove lots of problems.

Wednesday, 10 October 2007 [Samuel A. Rebelsky]

• Finished preliminary update for the new media computation CSC151.
• Finished the helper code for spots.
• Removed many more problems.
• Created more problems.

Saturday, 13 October 2007 [Samuel A. Rebelsky]

• Added spots.vtrans and spots.htrans on the suggestion of Janet Davis.
• Added a few more steps to the image.get-row procedure on the suggestion of Janet Davis.
• Reorganized the problems (yes, on the suggestion of Janet Davis).
• Other, minor, cleanup.
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2007F/Labs/numeric-recursion-lab.html.