CSC151.02 2015S, Class 05: Drawings as Values
=============================================

_Overview_

* Preliminaries.
    * Admin.
    * Upcoming Work.
    * Extra Credit.
    * Questions.
* Representing images.
* Thinking about drawings through composition/decomposition.
* The underlying representation.
* Pure approaches vs impure approaches.

Preliminaries
-------------

### Admin

* Continue partners!
* Office Hours:
    * Normally: 10:00-11:00 MTWF, 3:15-4:00 M (may change)
    * Currently booked: Tu 10:15-10:30, 10:45-11:00, F 10:00-11:00
    * Reserve a slot at <https://rebelsky.youcanbook.me/>.
    * Also feel free to try to visit during unbooked times or open times
      <http://www.grinnell.edu/~rebelsky/schedule.html>.  Note that I may
      be busy with other things during open times.

### Upcoming Work

* [Assignment 2](../assignments/assignment.02.html).
    * Due TONIGHT at 10:30 p.m.  
* Assignment 3 to be distributed tomorrow.
    * Plan: Wednesday/Friday partners will also be your HW partner.
* Lab writeup for lab 4, due Wednesday at 10:30 p.m.: Problem 2, parts d,e,f.
  <http://bitly.com/151-2015S-lab04>
* Lab writeup for lab 5, due Thursday at 10:30 p.m., Problem 4:, parts a, c, e.
  <http://bitly.com/151-2015S-lab05>
* Readings for Wednesday:
    [Writing Your Own Procedures] (../readings/procedures-reading.html) and
    [How Scheme Evaluates Expressions (Take 2)](../readings/scheme-eval-2.html)

### Extra Credit Opportunities

#### Academic 

* Friday, 12:10 p.m., JRC 224A (Day PDR), CS Table, To be determined. 

#### Peer Support (Morning Section)

* Swimming, Friday, January 30, 6:30 p.m., Osgood Natatorium
* Swimming, Saturday, January 31, noon, Osgood Natatorium
* Julia's radio show, "The Hot Box".  Wednesday night/Thursday morning 
  1:00-2:00 a.m. 

#### Peer Support (Afternoon Section)

* Men's Baskeball, Tuesday, 7 p.m., New Darby
* Meditation group, Saturday, 4 p.m., CRSSJ
* Meditation group, Wednesday, 9:00 p.m., CRSSJ
* Swimming, Friday, January 30, 6:30 p.m., Osgood Natatorium
* Swimming, Saturday, January 31, noon, Osgood Natatorium
* Men's Tennis, Saturday, January 31, Field House

### Recommended Events (no EC unless mentioned above)

* Women's Basketball, Tuesday, 5pm, New Darby
* Belly Dance Club, to be scheduled
* Salsa Club, Tuesdays at 7pm and Saturdays at 2pm
* Meditation group, Wednesdays at 9:00 and Sundays at 4:00 in CRSSJ
* #OneGrinnell, Wednesday, February 4 at 4:15 p.m.

### Questions

Representing images
-------------------

Thinking about drawings through composition/decomposition
---------------------------------------------------------

The underlying representation
-----------------------------

Pure approaches vs impure approaches
------------------------------------