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Computer Science - Khan Academy

reported by Khan_academy (19 courses)

published Thursday 12th November 2015

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Introduction to programming and computer science

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1) Introduction to Programs Data Types and Variables Writing a basic program. Basics of data types, variables and conditional statements 155 views watch video download
2) Python Lists Understanding the basics of lists in Python 190 views watch video download
3) For Loops in Python Basics of for loops in Python 135 views watch video download
4) While Loops in Python Seeing that a while loop can do the same thing as a for loop 191 views watch video download
5) Fun with Strings Experimenting and seeing what we can do with strings 152 views watch video download
6) Writing a Simple Factorial Program. (Python 2) Writing a simple factorial program with a "for" loop 195 views watch video download
7) Stepping Through the Factorial Program Stepping through what happens when a user inputs a particular value into our factorial program 131 views watch video download
8) Flowchart for the Factorial Program Flowchart for the factorial program 194 views watch video download
9) Python 3 Not Backwards Compatible with Python 2 Understanding why the example program would not run in Python 3 and how to fix it. 146 views watch video download
10) Defining a Factorial Function Defining a function in Python 165 views watch video download
11) Diagramming What Happens with a Function Call Variable scope and function calls 120 views watch video download
12) Recursive Factorial Function Introduction to recursion. 150 views watch video download
13) Comparing Iterative and Recursive Factorial Functions Comparing iterative and recursive factorial functions 120 views watch video download
14) Exercise - Write a Fibonacci Function Introduction to the Fibonacci Sequence and a programming challenge 140 views watch video download
15) Iterative Fibonacci Function Example One way to write a Fibonacci function iteratively 119 views watch video download
16) Stepping Through Iterative Fibonacci Function Understanding how the iterative fibonacci function works for a particular example 137 views watch video download
17) Recursive Fibonacci Example Using recursion to write a fibonacci function 178 views watch video download
18) Stepping Through Recursive Fibonacci Function Understanding why and how the recursive Fibonacci function works 134 views watch video download
19) Exercise - Write a Sorting Function Challenge to write a Python function that can sort a list in-place 108 views watch video download
20) Insertion Sort Algorithm Visual description of the insertion sort algorithm 257 views watch video download
21) Insertion Sort in Python Basic implementation of insertion sort algorithm 185 views watch video download
22) Stepping Through Insertion Sort Function Clarifying what "break" does and stepping through the insertion sort implementation 186 views watch video download
23) Simpler Insertion Sort Function Simplifying the while loop for the Insertion Sort function 177 views watch video download

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Lessons hide description

Writing a basic program. Basics of data types, variables and conditional statements

Understanding the basics of lists in Python

Basics of for loops in Python

Seeing that a while loop can do the same thing as a for loop

Experimenting and seeing what we can do with strings

Writing a simple factorial program with a "for" loop

Stepping through what happens when a user inputs a particular value into our factorial program

Flowchart for the factorial program

Understanding why the example program would not run in Python 3 and how to fix it.

Defining a function in Python

Variable scope and function calls

Introduction to recursion.

Comparing iterative and recursive factorial functions

Introduction to the Fibonacci Sequence and a programming challenge

One way to write a Fibonacci function iteratively

Understanding how the iterative fibonacci function works for a particular example

Using recursion to write a fibonacci function

Understanding why and how the recursive Fibonacci function works

Challenge to write a Python function that can sort a list in-place

Visual description of the insertion sort algorithm

Basic implementation of insertion sort algorithm

Clarifying what "break" does and stepping through the insertion sort implementation

Simplifying the while loop for the Insertion Sort function

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