'Michael ernst uw cse' presentation slideshows

Functions and abstraction

437 views • 23 slides

Introduction to Python and programming

331 views • 22 slides

Control flow

Control flow. Michael Ernst UW CSE 140 Winter 2013. Repeating yourself. Making decisions. Temperature conversion chart. Output: 30 - 1.11 40 4.44 50 10.0 60 15.56 70 21.11 All done. Recall exercise from previous lecture fahr = 30 cent = (f-32)/9.0*5 print fahr , cent

322 views • 20 slides

Recursion

Recursion. To seal: moisten flap, fold over, and seal. Michael Ernst UW CSE 140. Three recursive algorithms. Sorting GCD (greatest common divisor) Exponentiation. Used in cryptography, which protects information and communication. Sorting a list.

330 views • 18 slides

Control flow

Control flow. Michael Ernst UW CSE 190p Summer 2012. Repeating yourself. Making decisions. Temperature conversion chart. Output: 30 - 1.11 40 4.44 50 10.0 60 15.56 70 21.11 All done. Recall exercise from previous lecture fahr = 30 cent = (f-32)/9.0*5 print fahr , cent

305 views • 15 slides

File I/O

File I/O. Michael Ernst UW CSE 140 Winter 2013. File Input and Output. As a programmer, when would one use a file? As a programmer, what does one do with a file?. Files store information when a program is not running. Important operations: open a file close a file read data write data.

240 views • 9 slides

Collections

Collections. Michael Ernst UW CSE 140. Count the words in a document. Assume you start with a list of words:

139 views • 6 slides

Collections

Collections. Michael Ernst UW CSE 140. Count the words in a document. Assume you start with a list of words:

129 views • 6 slides

Method syntax

Method syntax. Michael Ernst UW CSE 140. Digression: two meanings of period (.). Namespace management : math.sin ( math.pi ) Purpose: avoid polluting the global environment frame with too many names Example problem: abs is in the global namespace

168 views • 4 slides