Download General Computer Science for Engineers CISC 106 Lecture 01

General Computer Science
for Engineers
CISC 106
Lecture 01
Dr. John Cavazos
Computer and Information Sciences
09/01/2010
Course Overview

Unit 1 : How to write a proper program
◦ Using design recipes

Unit 2 : More programming
◦ Iteration, Recursion, Searching, Sorting, etc.

Unit 3 : Numeric Programming
◦ Matlab
Sakai : Course syllabus, assignments, etc.
 TAs : Marcos Portnoi, Ashwani Rao

Labs

Labs on Monday
◦ Pearson Hall 101D
◦ First Lab : week after next Monday
First two labs are solo
 Remaining labs done in pairs
 Labs assigned Fridays and due 9 days later
(Sunday) after assigned

Grading

Grading:
◦
◦
◦
◦
◦
Final (15%)
Two midterms (15% + 15%)
Two projects (5% + 10%)
Labs (30%)
Activities and Participation (5% + 5%)
Project 1 done in a pair
 Project 2 in teams of 4

Computer Technology
Space Shuttle, 1985
- 25 years ago
- Powerful computer onboard
- Can calculate entry into Earth
Slides based on Lazowska’s FCRC 2007 Talk.
Computer Technology
Pleo, 2006
- Has more powerful
computers
Note : Xbox 360 is 200x
more powerful.
Slides based on Lazowska’s FCRC 2007 Talk.
Software technology also changing!
Slides based on Lazowska’s FCRC 2007 Talk.
Software technology also changing!
Deep Fritz, 2002
Slides based on Lazowska’s FCRC 2007 Talk.
Computing has change the world!
- Advances in computing change the way we
live, work, learn, and communicate
-Advances in computing drive advances in
nearly all other fields
- Advances in computing power our economy
Slides based on Lazowska’s FCRC 2007 Talk.
Exciting Times Ahead
The next ten years of advances in computer
science could be far more significant, and far
more interesting, than the past ten!
Slides based on Lazowska’s FCRC 2007 Talk.
Python Introduction
•Enthought distribution (Do not use 64-bit version!)
•Integrated DeveLopment Environment (IDLE)
–Automatically installed when Python language is installed
–It has a built-in text editor
–IDLE editor colorizes code
Copyright © 2009 Pearson Education, Inc. Publishing as Pearson Addison-Wesley
Expressions
>>> 2
2
>>> 3 + 2
5
Note: Can use the usual operators. +, -, /, *
exponentiation is **.
>> 2 ** 3
8
Expressions (cont’d)
Can combine and nest expressions
>>> 3 + 2 * 2 # what does this evaluate to?
7
Operator precedence. ** then * and / then + and 1
Use parenthesis if necessary.
>> ( 3 + 2) * 2
10
Expressions (cont’d)
Some built-in functions available : pow, abs
>>> pow (2 , 3)
8
For math functions need to do the following :
>>> from math import *
>>> sin(0)
>>> cos(pi)
>>> sqrt(9)
Atomic Data
- Numbers : floats, integers
Can use “type” to find out the data type of something.
type(5)
# int
type (5.0) # float
- Strings
Some examples : “hello” and ‘hello’
type(“hello”) # str
“hello” + “world” # plus symbol concatenates two strings