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Software Programming

Looking for software programming help?
We have free video lessons on software programming languages. The programming languages available are Java and Python.

Python Programming Language

A series of video lessons on the Python Programming Language given by Khan Academy.

Introduction to Programs Data Types and Variables Writing a basic program. Basics of data types, variables and conditional statements Python Lists Understanding the basics of lists in Python
For Loops in Python Basics of for loops in Python While Loops in Python Seeing that a while loop can do the same thing as a for loop
Fun with Strings Experimenting and seeing what we can do with strings Writing a Simple Factorial Program(Python 2) Writing a simple factorial program with a "for" loop
Stepping Through the Factorial Program Stepping through what happens when a user inputs a particular value into our factorial program Flowchart for the Factorial Program
Python 3 Not Backwards Compatible with Python 2 Understanding why the example program would not run in Python 3 and how to fix it.  

Defining a Factorial Function Diagramming What Happens with a Function Call Variable scope and function calls
Recursive Factorial Function Introduction to recursion. Comparing Iterative and Recursive Factorial Functions
Exercise - Write a Fibonacci Function Introduction to the Fibonacci Sequence and a programming challenge
Iterative Fibonacci Function Example One way to write a Fibonacci function iteratively Stepping Through Iterative Fibonacci Function Understanding how the iterative Fibonacci function works for a particular example
Recursive Fibonacci Example Using recursion to write a fibonacci function Stepping Through Recursive Fibonacci Function Understanding why and how the recursive Fibonacci function works
Exercise - Write a Sorting Function Challenge to write a Python function that can sort a list in-place Insertion Sort Algorithm Visual description of the insertion sort algorithm
Insertion Sort in Python Basic implementation of insertion sort algorithm Stepping Through Insertion Sort Function Clarifying what "break" does and stepping through the insertion sort implementation

MIT 6.00 Intro to Computer Science & Programming

This subject is aimed at students with little or no programming experience. It aims to provide students with an understanding of the role computation can play in solving problems. It also aims to help students, regardless of their major, to feel justifiably confident of their ability to write small programs that allow them to accomplish useful goals. The class will use the Python programming language.

Lecture 1Goals of the course; what is computation; introduction to data types, operators, and variables Lecture 2Operators and operands; statements; branching, conditionals, and iteration
Lecture 3Common code patterns: iterative programs Lecture 4Decomposition and abstraction through functions; introduction to recursion
Lecture 5Floating point numbers, successive refinement, finding roots Lecture 6 Bisection methods, Newton/Raphson, introduction to lists
Lecture 7Lists and mutability, dictionaries, pseudocode, introduction to efficiency Lecture 8Complexity; log, linear, quadratic, exponential algorithms
Lecture 9: Binary search, bubble and selection sorts Lecture 10: Divide and conquer methods, merge sort, exceptions
Lecture 11: Testing and debugging Lecture 12: More about debugging, knapsack problem, introduction to dynamic programming
Lecture 13: Dynamic programming: overlapping subproblems, optimal substructure Lecture 14: Analysis of knapsack problem, introduction to object-oriented programming
Lecture 15: Abstract data types, classes and methods Lecture 16: Encapsulation, inheritance, shadowing
Lecture 17: Computational models: random walk simulation Lecture 18: Presenting simulation results, Pylab, plotting
Lecture 19: Biased random walks, distributions Lecture 20: Monte Carlo simulations, estimating pi
Lecture 21: Validating simulation results, curve fitting, linear regression Lecture 22: Normal, uniform, and exponential distributions; misuse of statistics
Lecture 23: Stock market simulation Lecture 24: Course overview; what do computer scientists do?

Computer Programming Methodology (Java)

A Free Java Programming Course from Stanford.

Programming Methodology (CS106A) is an Introduction to the engineering of computer applications emphasizing modern software engineering principles: object-oriented design, decomposition, encapsulation, abstraction, and testing. Uses the Java programming language. Emphasis is on good programming style and the built-in facilities of the Java language.

Lecture 1 Course Overview & Computer Programming Lecture 2 Introducing Karel and the commands
Lecture 3 Karel ֠Common errors, comments, and advanced instructions Lecture 4 History of computing and introduces programming in Java
Lecture 5 Graphics, objects, classes, variables, and values pertaining to Java Lecture 6 Expressions, variables, and values, conditions, scopes, if statements, and different loops
Lecture 7 Loops, function, methods, and returning Lecture 8 More details on methods and functions
Lecture 9 Strings, Classes and how to combine the previous topics and lectures together Lecture 10 Classes, constructors, instance variables, setters, strings, extending, interface, labels, and GArcs
Lecture 11 GObjects, GImage, Gcompound, and Gpolygons. How to incorporate the mouse and keyboard into the graphics Lecture 12 Enumeration
Lecture 13 String processing and characters Lecture 14 Memory and what happens to a computer internally when programming
Lecture 15 Pointers and memory, reading files, creating files, and over writing files Lecture 16 Arrays
Lecture 17 Arrays and array lists Lecture 18 Arrays and Debugging
Lecture 19 Interfaces Lecture 20 Graphical User Interface
Lecture 21: Interactions Lecture 22: Programming Methodology (Stanford)
Lecture 23: Searching and sorting Lecture 24 How online music companies sort and classify their music
Lecture 25 Programming Methodology (Stanford) Lecture 26 Programming Methodology (Stanford)
Lecture 27 Programming Methodology (Stanford) Lecture 28 Programming Methodology (Stanford)

Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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