Demystifying bitwise operations, a gentle C tutorial
A beginner-friendly tutorial on bitwise operations in C
Posts by Category
- c 16
- java 16
- algorithms 15
- math 11
- nontech 6
- python 3
- mathematics 3
- kotlin 2
- scala 1
- haskell 1
- shell 1
- personal 1
- programming 1
- career 1
c
Building pathological input for Java HashMaps - hash collisions generator
Hash collision generator targeting the default java hash function
4 integers are enough to write a Snake Game
A snake written in 4 integers
A blog that is a single executable binary
A Binary Blog generator written in C
On implementing Bloom Filters in C
A concise implementation of bloom filters in C
Writing a simple 16 bit VM in less than 125 lines of C
Writing a simple VM for LC3 in less than 125 lines of C
Implementing Hash Tables in C
An in-depth explanation on how we can implement hash tables in pure C. The article covers the following topics: hash functions, separate chaninig and open ad...
Computing Eigenvalues and Eigenvectors using QR Decomposition
A short tutorial on how to compute Eigenvalues and Eigenvectors using QR Matrix Decomposition. Python code included.
Writing your own linear algebra matrix library in C
A step-by-step guide on how to implement a matrix library in pure C.
Implementing a generic Priority Queue in C (using heaps)
An article describing how to implement a Priority Queue in C.
Euclid’s Algorithm: Reducing fraction to lowest terms
The Euclid algorithm explained and implemented in C.
Sieve of Eratosthenes (finding all prime numbers up to a specific integer)
The algorithm of Sieve of Eratosthenes
Binary GCD (Stein’s Algorithm) in C
The Stein’s algorithm explained and implemented in C.
Euclid’s Algorithm
The Euclid’s algorithm explained and implemented in C.
Generic data structures in C
A short tutorial on how to write generic code in C.
Hello world!
Hello world!
java
I’ve promised myself never to use gradle
A short rant about gradle
Hash, displace, and compress: Perfect hashing with Java
An implementation of a perfection hashing algorithm in Java
A tale of Java Hash Tables
Implementing Open Addressing hash tables in Java and benchmarking them vs. HashMap
Writing a Universal Chess Interface (UCI) Client in Java
A step-by-step guide on how to implement an UCI client in Java.
Cars and Police, a Spring Boot streaming application using Kafka and ksqlDB
A ksqlDB proof of concept.
XML to JSON using MapNeat
A short tutorial on how to transform XML to JSON using mapneat.
Hello world, mapneat!
A gentle introduction to the Kotlin mapneat library.
Writing a simple file/folder monitor using the Watch Service API
Writing simple file/folder monitor using the low-level WatchService API (Java NIO)
Recursive folder walks using NIO.2 API
Implement recursive folder walks using the Java standard API.
Adding custom annotations to your java beans
On writing your own annotations
Writing a simple file monitor in Java using Commons IO
Monitor file changes using Commons IO
Insertion Sort Algorithm
The insertion sort algorithm explained and implemented in Java.
Bottom-up Merge Sort (non-recursive)
The merge sort algorithm (non-recursive) explained and implemented in Java.
The merge sort algorithm (implementation in Java)
The merge sort algorithm explained and implemented in Java.
Serialize java objects using GZip streams (GZIPInputStream and GZIPOutputStream)
An article on how to serialize and deserialize Java Objects using GZIP streams.
Converting infix to RPN (shunting-yard algorithm)
The shunting-yard algorithm implemented in Java.
algorithms
Hash, displace, and compress: Perfect hashing with Java
An implementation of a perfection hashing algorithm in Java
On implementing Bloom Filters in C
A concise implementation of bloom filters in C
A tale of Java Hash Tables
Implementing Open Addressing hash tables in Java and benchmarking them vs. HashMap
Implementing Hash Tables in C
An in-depth explanation on how we can implement hash tables in pure C. The article covers the following topics: hash functions, separate chaninig and open ad...
Writing your own linear algebra matrix library in C
A step-by-step guide on how to implement a matrix library in pure C.
Implementing a generic Priority Queue in C (using heaps)
An article describing how to implement a Priority Queue in C.
Insertion Sort Algorithm
The insertion sort algorithm explained and implemented in Java.
Bottom-up Merge Sort (non-recursive)
The merge sort algorithm (non-recursive) explained and implemented in Java.
The merge sort algorithm (implementation in Java)
The merge sort algorithm explained and implemented in Java.
Euclid’s Algorithm: Reducing fraction to lowest terms
The Euclid algorithm explained and implemented in C.
Sieve of Eratosthenes (finding all prime numbers up to a specific integer)
The algorithm of Sieve of Eratosthenes
Binary GCD (Stein’s Algorithm) in C
The Stein’s algorithm explained and implemented in C.
Euclid’s Algorithm
The Euclid’s algorithm explained and implemented in C.
Converting infix to RPN (shunting-yard algorithm)
The shunting-yard algorithm implemented in Java.
Generic data structures in C
A short tutorial on how to write generic code in C.
math
The ‘trickonometry’ of math olympiad inequalities (Part 1)
Getting started with competitive math inequalities
A joke in approximating numbers raised to irrational powers
Pade Approximations are cute
How to compose math problems
How I compose math problems
13 problems with logarithms
A 13 problems set with logarithms
From the Circle to Epicycles (Part 1) - An animated introduction to Fourier Series
A visual introduction to Fourier Series
10 algebra problems selected from the Romanian Olympiad (Part 2)
A selection of non-trivial algebra problems.
A surprising matrix problem
A surprising math problem from the Spanish Math Olympiad of 1988
20 algebra problems selected from the Romanian Olympiad (Part 1)
A selection of 20 math problems from the Romanian Math Olympiad (solutions included).
The sinusoidal tetris
A tetris game with a twist
The math exams of my life
A nostalgic math adventure
The so-called magic of the number 37
Debunking a meme
nontech
How to compose math problems
How I compose math problems
13 problems with logarithms
A 13 problems set with logarithms
10 algebra problems selected from the Romanian Olympiad (Part 2)
A selection of non-trivial algebra problems.
A surprising matrix problem
A surprising math problem from the Spanish Math Olympiad of 1988
20 algebra problems selected from the Romanian Olympiad (Part 1)
A selection of 20 math problems from the Romanian Math Olympiad (solutions included).
The math exams of my life
A nostalgic math adventure
python
Computing Eigenvalues and Eigenvectors using QR Decomposition
A short tutorial on how to compute Eigenvalues and Eigenvectors using QR Matrix Decomposition. Python code included.
Generate random SQL inserts using pysert
A short tutorial on how to use and configure pysert.
Evaluate RPN expressions using Haskell, Scala, and python
RPN Calculator in 3 different programming languages
mathematics
Computing Eigenvalues and Eigenvectors using QR Decomposition
A short tutorial on how to compute Eigenvalues and Eigenvectors using QR Matrix Decomposition. Python code included.
Linear transformations, Eigenvectors and Eigenvalues - an easy explanation
A short mathematical explanatory article on Linear Transformations, Eigenvalues and Eigenvectors.
Writing your own linear algebra matrix library in C
A step-by-step guide on how to implement a matrix library in pure C.
kotlin
XML to JSON using MapNeat
A short tutorial on how to transform XML to JSON using mapneat.
Hello world, mapneat!
A gentle introduction to the Kotlin mapneat library.
scala
Evaluate RPN expressions using Haskell, Scala, and python
RPN Calculator in 3 different programming languages
haskell
Evaluate RPN expressions using Haskell, Scala, and python
RPN Calculator in 3 different programming languages
shell
Bash Scripting - Best Practices
A list of bash best practices.
personal
The math exams of my life
A nostalgic math adventure
programming
My list of challenging software projects some programmers should try
Unsolicited advice
career
My list of challenging software projects some programmers should try
Unsolicited advice