History of Lab on Local Procedure Bindings

2 March 1997 [John Stone or Henry Walker]

• Created combined reading and lab on this topic.

Monday, 24 October 2000 [Samuel A. Rebelsky]

• Turned in to separate lab.
• Most of the problems were taken from http://www.cs.grinnell.edu/~stone/courses/scheme/spring-2000/local-binding-and-recursion.xhtml
• This version is available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2000F/Labs/letrec.html

Wednesday, 14 March 2001 [Samuel A. Rebelsky]

• Updated formatting.
• Slight modifications to some problems.
• This version is available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2001S/Labs/letrec.html

Tuesday, 15 October 2002 [Samuel A. Rebelsky]

• Updated formatting.
• Updated wording on a few problems.
• Added illustrations of the expected form of answers for the first few problems. (After class.)
• Added steps to the first problem.
• This version is available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2002F/Labs/letrec.html

Tuesday, 4 February 2003 [Samuel A. Rebelsky]

• Added a note on the meaning of mutually recursive.
• Reworded a few problems slightly.
• Added For those with extra time section.
• This version is available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS153/2003S/Labs/letrec.html

Thursday, 27 February 2003 [Samuel A. Rebelsky]

• This version is available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2003S/Labs/local-procs.html

Friday, 10 October 2003 [Samuel A. Rebelsky]

• Added summary.
• Reworded a few problems.
• This version is available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2003F/Labs/local-procs.html

Wednesday, 27 September 2006 [Samuel A. Rebelsky]

• Added link to PDF file.
• Moved history to a separate file.
• Added more detail to the structure of the two versions of iota.
• Removed a problem on intersection (now a homework assignment).
• Made the extra exercises part of the main lab.
• Other, comparatively minor, cleanup
• This version is available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2006F/Labs/letrec.html

Tuesday, 20 February 2007 [Samuel A. Rebelsky]

• Minor cleanup.
• This version is available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2007S/Labs/letrec.html

Saturday, 13 October 2007 [Samuel A. Rebelsky]

• Revised for new media computing course.
  • Changed last element to brightest element.
  • Added lots of variations on the brightest element problem.
  • Updated the alternating list problem to deal with spots.
  • Moved the iota problem to "For those with extra time".

Tuesday, 16 October 2007 [Samuel A. Rebelsky]

• Lots of minor cleanup during testing.

Thursday, 18 October 2007 [Samuel A. Rebelsky]

• More cleanup subsequent to use in one class.
• This version is available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2007F/Labs/letrec-lab.html