Computer Science


Computer Science and Programming

Data Structures and Algorithms

Basic Sorting and Searching


Self Referential Data Stuctures



Commonly Asked Programming Interview Questions - from Microsoft/Google/Facebook/Amazon interviews

A Collection of C Programs

  Miscellaneous C Programs
C Program to Reverse A String

C Program: Building an Expression Evaluator
C Program: Check for Armstrong Numbers
C Program: Check whether a string is a Palindrome or not
C Program: Common Operations on Sets - Union, Intersection, Difference, Cardinal Product
C Program: Computing exp(x), sin(x), cos(x), tan(x) using series expansions
C Program: Computing the Area of a Circle
C Program: Computing the Upper Triangular Matrix and Lower Triangular Matrix
C Program: Demonstrating File Handling Functions
C Program: Demonstrating Operations on Matrices - Addition, Subtraction, Multiplication, Inversion, Finding Determinants
C Program: Demonstrating the use of Bitwise Operators
C Program: Displaying a Histogram of word frequencies (unigram)
C Program: Distance Vector Routing Algorithm using Bellman Ford's Algorithm
C Program: Numerical Computing - The Gaussian Elimination Method
C Program: Numerical Computing - Implementing the Newton Raphson Method
C Program: Numerical Computing - the Bisection Method
C Program: Numerical Computing - The Gaussian Elimination Technique from Linear Algebra
C Program: Numerical Computing - the Jacobi Method
C Program: Printing the Pascal Triangle
C Program: Reversing the order of words in a sentence
C Program: Solving Simultaneous Equations in Two Variables
C Program: Source Code for computing the GCD(HFC) of two numbers
C Program: Source Code for Solving Quadratic Equations
C Program: Source code to solve the Josephus Problem
C Program: Sudoku Solver
C Program: The Usage of Command Line Arguments
C Program: Using the Sieve of Eratosthenes to print Prime Numbers

Functional Programming Principles and Techniques

 Functional Programming - A General Overview  Using the Functional Programming paradigm with a regular programming language like Ruby    
       
       
       
       

Introduction to Python


 









PYTHON
 


Introduction to Ruby Programming


 
Programming With Ruby
Introduction to Ruby and some playing around with the Interactive Ruby Shell (irb)
Introduction to Ruby - Conditional statements and Modifiers: If-then, Unless, Case
Introduction to Ruby Comments - Single and Multi-Line comments
Introduction to Ruby Loops - Using While, Until, For, Break, Next , Redo, Retry
Introduction to Ruby - Arrays - Sorting, Filtering (Select), Transforming, Multi-Dimensional Arrays
Introduction to Ruby - Strings
Introduction to Ruby - Making a Script Executable
Introduction to Ruby - Regular Expressions, Match, Scan
Introduction to Ruby - Computing Factorials Recursively : An Example of Recursion
Introduction to Ruby - Binomial Coefficients (nCr) : An Example of Recursion
Introduction to Ruby - Computing a Power Set : An Example of Recursion
Introduction to Ruby - Towers of Hanoi : An Example of Recursion
Introduction to Ruby - Strings: Substitution, Encoding, Built-In Methods
Basic Data Structures in Ruby - Insertion Sort
Basic Data Structures in Ruby - Selection Sort
Basic Data Structures in Ruby - Merge Sort
Basic Data Structures in Ruby - Quick Sort
Basic Data Structures in Ruby - Stack
Basic Data Structures in Ruby - The Queue
Basic Data Structures in Ruby - Linked List - ( A Simple, Singly Linked List)
Functional Programming with Ruby

Databases - A Quick Introduction To SQL - Sample Queries demonstrating common commands

Introduction to SQL- A few sample queries - A Case Study - Coming up with a Schema for Tables -Taking a look at how the schema for a database table is defined, how different fields require to be defined. Starting with a simple "case study" on which the following SQL tutorials will be based. 

Introduction to SQL- A few sample queries : Creating Tables (CREATE) 

 Creating tables, defining the type and size of the fields that go into it.

 Introduction to SQL - A few sample queries : Making Select Queries 
 Elementary database queries - using the select statement, adding conditions and clauses to it to retrieve information stored in a database.
 Introduction to SQL - A few sample queries : Insert, Delete, Update, Drop, Truncate, Alter Operation Example of SQL commands which are commonly used to modify database tables. 

Introduction to SQL - A few sample queries: Important operators - Like, Distinct, Inequality, Union, Null, Join, Top
 Other Important SQL operators.

Introduction to SQL- A few sample queries: Aggregate Functions - Sum, Max, Min, Avg - Aggregate functions to extract numerical features about the data.

 


Introduction To Networking 

 Client Server Program in Python 

 A basic introduction to networking and client server programming in Python. In this, you will see the code for an expression calculator . Clients can sent expressions to a server, the server will evaluate those expressions and send the output back to the client. 

Introduction to Basic Digital Image Processing Filters

Introductory Digital Image Processing filters   Low-pass/Blurring filters, hi-pass filters and their behavior, edge detection filters in Matlab . You can take a look at how different filters transform images.
 Matlab scripts for these filters.

Basics of Statistics, Data, Machine Learning 










Java Applet Visualizations of Common Algorithms and Data Structures 



Visualizations for common topics in CS. Visual-ware for an introductory CS course. 


  Sorting and searching arrays.

  Linear data structures : ListsStacks, Queues

  Trees : Binary search trees, Heaps, Height balanced trees

  Recursion

  Dynamic Programming

  Greedy Algorithms


 
 
 


 
    


A Collection of C Programs

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Functional Programming Principles and Techniques



Databases - A Quick Introduction To SQL - Sample Queries demonstrating common commands

Introduction to SQL- A few sample queries - A Case Study - Coming up with a Schema for Tables -Taking a look at how the schema for a database table is defined, how different fields require to be defined. Starting with a simple "case study" on which the following SQL tutorials will be based. 

Introduction to SQL- A few sample queries : Creating Tables (CREATE) 

 Creating tables, defining the type and size of the fields that go into it.

 Introduction to SQL - A few sample queries : Making Select Queries 
 Elementary database queries - using the select statement, adding conditions and clauses to it to retrieve information stored in a database.
 Introduction to SQL - A few sample queries : Insert, Delete, Update, Drop, Truncate, Alter Operation Example of SQL commands which are commonly used to modify database tables. 

Introduction to SQL - A few sample queries: Important operators - Like, Distinct, Inequality, Union, Null, Join, Top
 Other Important SQL operators.

Introduction to SQL- A few sample queries: Aggregate Functions - Sum, Max, Min, Avg - Aggregate functions to extract numerical features about the data.

 





Areas of Mathematics which are important for Computer Science students


Basic of Linear Algebra


 Introduction to Matrices - Part I   Introduction to Matrices. Theory, definitions. What a Matrix is, order of a matrix, equality of matrices, different kind of matrices: row matrix, column matrix, square matrix, diagonal, identity and triangular matrices. Definitions of Trace, Minor, Cofactors, Adjoint, Inverse, Transpose of a matrix. Addition, subtraction, scalar multiplication, multiplication of matrices. Defining special types of matrices like Symmetric, Skew Symmetric, Idempotent, Involuntary, Nil-potent, Singular, Non-Singular, Unitary matrices.


Introduction to Matrices - Part II Problems and solved examples based on the sub-topics mentioned above. Some of the problems in this part demonstrate finding the rank, inverse or characteristic equations of matrices. Representing real life problems in matrix form.



Determinants Introduction to determinants. Second and third order determinants, minors and co-factors. Properties of determinants and how it remains altered or unaltered based on simple transformations is matrices. Expanding the determinant. Solved problems related to determinants.   Simultaneous linear equations in multiple variablesRepresenting a system of linear equations in multiple variables in matrix form. Using determinants to solve these systems of equations. Meaning of consistent, homogeneous and non-homogeneous systems of equations. Theorems relating to consistency of systems of equations. Application of Cramer rule. Solved problems demonstrating how to solve linear equations using matrix and determinant related methods. 



Applied Mathematics : An Introduction to Game Theory

Applied Mathematics : An Introduction to Operations Research

 Introduction to Operations Research

 A quick introduction to Operations Research. Introducing Linear Programming, standard and canonical forms. Linear Programming geometry, feasible regions, feasible solutions, simplex method. Some basic problems. 



 








































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