History of Reading on Procedures

22 January 1997 [John David Stone and/or Henry Walker]

• Created.
• This version available at http://www.math.grin.edu/~walker/courses/151.sp97/lab-procedures.html

17 March 2000 [John David Stone]

• Last set of updates in the Stone branch, before the separate Rebelsky branch was started.
• This version available at http://www.math.grin.edu/~stone/courses/scheme/spring-2000/procedure-definitions.xhtml

1 September 2000 [Henry Walker]

• Last set of updates in the Walker branch, before the separate Rebelsky branch was started.
• This version available at http://www.math.grin.edu/~walker/courses/151.fa00/lab-procedures.html

Tuesday, 5 September 2000 [Samuel A. Rebelsky]

• Created as a separate lab, synthesizing the Walker and Stone versions.
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2001S/Labs/procedures.html.

Wednesday, 31 January 2001 [Samuel A. Rebelsky]

• Reformatted for CSC151 2001S.
• Added links to reference pages.
• Added a new problem 1 (that refers to the frac procedure from the reading).
• Fixed my bad programming habit of using quote to create lists.

Sunday, 4 February 2001 [Samuel A. Rebelsky]

• Updated problem 2 (from add2 to addtwo).
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2001S/Labs/procedures.html.

Tuesday, 10 September 2002 [Samuel A. Rebelsky]

• Updated reference links to point to the Glimmer Scheme Reference.
• Updated the spherical volume problem to (1) correct information about the size of softballs; (2) add a question on Chicago-style softballs in honor of my students who played softball in Chicago.
• Minor updates to text.
• Added for those who finish early section.

Friday, 13 September 2002 [Samuel A. Rebelsky]

• Corrected typos.
• Added a-name tags to sections.
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS151/2002F/Labs/procedures.html.

Friday, 24 January 2003 [Samuel A. Rebelsky]

• A few small updates to text.
• Added code for frac (so that students don't need to visit the reading to find it).
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS153/2003S/Labs/procedures.html.

Thursday, 11 September 2003 [Samuel A. Rebelsky]

• Added quadratic formula.

Friday, 12 September 2003 [Samuel A. Rebelsky]

• Reformatted extra exercises.

Sunday, 3 September 2006 [Samuel A. Rebelsky]

• Removed links to the now-defunct Glimmer Scheme reference.
• Rewrote the roots of a polynomial procedure to incorporate the new homework 2 (which asks students to compute roots).
• Added another extra exercise, this one to compute both roots of the quadratic.
• Minor other cleanup.

Wednesday, 6 September 2006 [Samuel A. Rebelsky]

• Added a few more notes.
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS153/2006F/Labs/procedures.html.

Thursday, 1 February 2007 [Samuel A. Rebelsky]

• Add prehistory.
• Moved history to a separate file.
• Moved the last few problems to the Extra section.

Sunday, 4 February 2007 [Samuel A. Rebelsky]

• Made a change to the first problem to correspond to the change in the reading from a frac procedure to a fracpart procedure.
• This version available at http://www.cs.grinnell.edu/~rebelsky/Courses/CS153/2007S/Labs/procedures.html.