• Continue partners!

Overview

• Preliminaries.
  • Admin.
  • Upcoming Work.
  • Extra Credit.
  • Questions.
• Lab.

Preliminaries

Admin

• Quiz 1 returned.
• Yes, I really do try to respond to questions via email and text. (At least I think I've done so so far.)

Reminders

• Office hours: MTWF 10-11, Tu 1-2.
  • Sign up at http://rebelsky.youcanbook.me.
  • Also feel free to stop by when my door is open.
  • Or to email me for an appointment.
• Tutor hours
  • Sunday, 3-5 p.m.
  • Sunday-Thursday, 7-10 p.m.
• Weekly review sessions:
  • Wednesday at 8pm in the CS Commons with Zacharcy
  • Thursday at 10am in this room with SamR
  • Thursday at 8pm in the CS Commons with Kumar

Upcoming Work:

• Readings for Wednesday:
  • Transforming Images
• Assignment 2 due TONIGHT! at 10:30 p.m.
• Lab Writeup: Exercise 5 and "Figure out why we round toward even"
  • Send email titled CSC 151 Lab Writeup 6 (Your Names)
  • Do not include the underscores.
  • Send to CSC151-02-grader@grinnell.edu
  • Due before class on Friday.

Extra Credit

If you know of other events, please suggest them! (I might not always agree, but it never hurts to ask.)

Academic

• Community Conversations on Race, 7:30 p.m., TONIGHT Lazier 3rd Floor Lounge
• Next week's Rosenfield Symposium on Campaign Finance Reform.
• 4 pm Thursday in this room: LaTeX
• 4 pm Thursday in JRC 209 - Funding for unfunded internships
• 7:30 pm next Tuesday in ARH 131 - Funding for unfunded internships

Peer

• Track and Field Grinnell Invite February 6. (10 a.m.)
• Swimming February 6 vs. UN and IAState. (1 p.m.)

Regular

• Social Dance Workshop Tuesdays 7:00-8:00 in Bucksbaum Dance Studio (starting next week)

Questions from Sam

What does round do?

Makes things the same shape as Sam. NO!

Rounds to the closest number.

Above 0.5 rounds to higher number

Below 0.5 rounds to lower number

At 0.5 rounds to the lower number

(round 2.6) => 3 (round 2.4) => 2 (round -2.6) => -3 (round -2.4) => -2 (round 2.5) => 2 or 3

Whoops! What about inexact numbers

(round 5/2) => 2 or 3 (correct answer: 2) (round 7/2) => 3 or 4 (correct answer: 4) (round -5/2) => -2 (round -7/2) => -4

The magic Google says ... "It rounds to even when it is x and a half."

Good Grinnell students ask why?

Questions

Lab

Writeup: Exercise 5

Reminder: It's a good idea to do (or at least read through) all of the problems.