Articles

Searching 🇺🇸

Searching is the task of finding whether a particular value exists in a collection and, if it does, where it lives (its index, pointer, node, or associated value). It shows up everywhere: checking if a username is taken, locating a record in a database, finding a file in an index, routing packets, o...

Input and Output 🇺🇸

Input/output is where VTK starts being a tool you can actually plug into real workflows. Your data almost never starts life inside VTK, it comes from scanners, simulators, CAD tools, or research pipelines. So the ability to read reliably, preserve attributes, and write back out in the right format i...

Visualization Techniques 🇺🇸

Modern datasets don’t just have “more rows”, they have more dimensions: space, time, uncertainty, multiple physical variables, and often multiple scales of detail. In that world, visualization isn’t decoration; it’s how you think. VTK matters here because it doesn’t force you into one visualization ...

Animations 🇺🇸

VTK offers a set of tools to create animations and visualize time-varying data. This is particularly useful in scenarios such as...

Data Structures 🇺🇸

In computer science, a collection (often interchangeably referred to as a container) is a sophisticated data structure designed to hold multiple entities, these could be simple elements like numbers or text strings, or more complex objects like user-defined structures. Collections help you store, or...

Dynamic Programming 🇺🇸

Dynamic Programming (DP) is a way to solve complex problems by breaking them into smaller, easier problems. Instead of solving the same small problems again and again, DP stores their solutions in a structure like an array, table, or map. This avoids wasting time on repeated calculations and makes t...

Sorting 🇺🇸

In the realm of computer science, 'sorting' refers to the process of arranging a collection of items in a specific, predetermined order. This order is based on certain criteria that are defined beforehand...

Graphs 🇺🇸

In many areas of life, we come across systems where elements are deeply interconnected, whether through physical routes, digital networks, or abstract relationships. Graphs offer a flexible way to represent and make sense of these connections...

Basic Concepts 🇺🇸

Data structures and algorithms are fundamental concepts in computer science and they are the only way to write efficient software...

Backtracking 🇺🇸

Backtracking is a method used to solve problems by building potential solutions step by step. If it becomes clear that a partial solution cannot lead to a valid final solution, the process "backtracks" by undoing the last step and trying a different path. This approach is commonly applied to constra...

Brain Teasers 🇺🇸

Programming puzzles and brain teasers are a fun way to sharpen your coding and problem-solving skills. You’ll often see them in technical interviews, where they’re used to test how you think, analyze problems, and come up with efficient solutions. To do well, it helps to practice and build solid str...

Math Set Relationship 🇺🇸

You begin with a small set of “building blocks,” and then you systematically manufacture bigger collections (pairs, sequences, subsets, orderings). The punchline is always the same: what did you build, how many objects exist, and what does it cost to generate them? If you care about algorithms, this...

Interactivity 🇺🇸

By combining low-level access to rendering primitives with high-level interactor and widget frameworks, VTK enables you to build applications where users can drill into complex datasets, modify display parameters in real time, and receive immediate visual feedback. These capabilities not only enhanc...

Performance Optimization and Parallelism 🇺🇸

When working with complicated datasets and sophisticated visualization pipelines, performance optimization and parallelism become important for delivering real-time or near-real-time insights. VTK (Visualization Toolkit) supports a variety of performance-enhancing techniques and offers a strong fram...

Greedy Algorithms 🇺🇸

Greedy algorithms are the “make progress now” strategy: build a solution one step at a time, and at each step take the option that looks best right now according to a simple rule (highest value, earliest finish, smallest weight, smallest distance label, etc.). You keep the choice only if it doesn’t ...

Filters and Algorithms 🇺🇸

VTK’s filters and algorithms are where your data stops being “a static dataset” and starts becoming dynamic: you generate something, clean it up, extract meaning, and reshape it into a form that’s easier to analyze or visualize. Think of this like a workshop pipeline, raw material comes in, tools op...

Custom Filters and Algorithms 🇺🇸

Creating custom filters and algorithms opens up a world of possibilities for tailored data processing and visualization. By extending VTK's capabilities, specialized techniques can be introduced that meet the unique needs of scientific research, engineering, medical imaging, or data analysis...

Data Types and Structures 🇺🇸

VTK is built to carry real-world 2D/3D data all the way from “numbers in memory” to “something you can see and reason about.” That means it needs data types that don’t just store values, but also store where those values live in space and how they connect. If you pick the right structure early, ever...

Consistency 🇺🇸

Consistency is a principle in database systems that ensures data remains accurate, valid, and reliable throughout all transactions. When a transaction occurs, the database moves from one consistent state to another, always adhering to the predefined rules and constraints set within the database sche...

Accessing Database in Code 🇺🇸

Accessing databases through code is a fundamental skill for developers building applications that rely on data storage and retrieval. Whether you're developing a web application, mobile app, or any software that requires data persistence, understanding how to interact with databases programmatically...

Selinux 🇺🇸

Security-Enhanced Linux (SELinux) is a robust security module integrated into the Linux kernel that provides a mechanism for supporting access control security policies. Unlike traditional discretionary access control (DAC) systems where users have control over their own files and processes, SELinux...

Triggers 🇺🇸

Welcome back to our exploration of SQL! Today, we're delving into the world of triggers, a powerful feature that allows you to automate actions in response to specific events in your database. Triggers can help maintain data integrity, enforce business rules, and keep an audit trail of changes—all w...

Petle 🇵🇱

Pętle to kluczowe konstrukcje w programowaniu, które pozwalają na wielokrotne wykonanie określonego fragmentu kodu w zależności od ustalonych warunków lub do momentu osiągnięcia konkretnego celu. Dzięki pętlom można automatyzować powtarzalne procesy, co znacznie przyspiesza działanie programów i uła...

Running Executables 🇺🇸

We'll explore the inner workings of the Linux kernel, focusing on how it loads and executes binaries. We'll dive into the execve system call, build a custom kernel, and use debugging tools to see the execution process in action. Whether you're a seasoned developer or just curious about operating sys...

Kernel 🇺🇸

We will now delve deeply into the Linux kernel to understand its role in the operating system, where it resides on your system, and how kernel modules function. We will also explore how to download and examine the Linux kernel source code, and discuss the various configuration options available with...

Testing 🇺🇸

Testing ensures the stability, security, and performance of your application. Let's delve deeper into the world of frontend testing...

Dokumentacja 🇵🇱

Dokumentacja jest istotnym elementem każdego projektu programistycznego. Umożliwia użytkownikom zrozumienie, jak działa aplikacja, jak jest zbudowana, oraz jakie funkcje oferuje. Odpowiednio przygotowana dokumentacja pomaga również innym programistom w szybkim zrozumieniu kodu, ułatwiając jego dalsz...

Bayes Theorem 🇺🇸

Bayes' theorem provides a way to update our probability estimates for an event based on new evidence. It connects the conditional and marginal probabilities of events, allowing us to revise our predictions or hypotheses in light of additional information. The theorem is stated mathematically as...

Mono and Multi Repo 🇺🇸

When managing software projects, organizations often need to choose between two distinct codebase structuring strategies: monorepos and multirepos. This decision isn’t just about where code lives—it affects collaboration, tooling, versioning, and even deployment practices. When you’re starting out o...

Debugowanie 🇵🇱

Debugowanie to fundamentalny proces w tworzeniu oprogramowania, polegający na identyfikowaniu, analizowaniu i usuwaniu błędów (bugów) w kodzie źródłowym programu. Błędy te mogą prowadzić do nieprawidłowego działania aplikacji, awarii systemu lub nieoczekiwanych rezultatów. Debugowanie umożliwia prog...

Gamma Distribution 🇺🇸

A continuous random variable X follows a gamma distribution if it is used to model the time until an event occurs a specific number of times. The gamma distribution is a two-parameter family of continuous probability distributions and is often denoted as $X \sim \text{Gamma}(\alpha, \beta)$, where ...

Javascript Frameworks 🇺🇸

A software framework is a pre-written app skeleton on which you may further develop. It is a collection of files and folders to which you may modify as well as add your files and folders. A framework addresses following development issues...

Trapezoidal Rule 🇺🇸

The Trapezoidal Rule is a fundamental numerical integration technique employed to approximate definite integrals, especially when an exact antiderivative of the function is difficult or impossible to determine analytically. This method is widely used in various fields such as engineering, physics, a...

Watki 🇵🇱

Wątki to jednostki wykonawcze procesu, które umożliwiają równoległe wykonanie różnych fragmentów kodu w obrębie jednego programu. Zastosowanie wątków może znacząco przyspieszyć działanie aplikacji, zwłaszcza gdy mamy do czynienia z operacjami blokującymi, takimi jak łączenie się z zewnętrznymi serwe...

Window Functions 🇺🇸

Window functions in SQL are powerful tools that allow you to perform calculations across a set of table rows that are related to the current row. Unlike aggregate functions, window functions do not collapse rows into a single output row; instead, they retain the individual row identities while provi...