Rediscovering Lagrange Polynomials

Rediscovering Lagrange Polynomials
Some time ago, I wanted to find a formula for a function that passes through a given set of points. And since I love reinventing the wheel, I decided to not google the problem and instead find a formula of my own. Let \(f(x)\) to be the function we are looking for and \(\{(x_{i}, y_{i}) \mid i=1,2,\dots,n \}\) to be the given set of points. My strategy was to express the function as a sum of \(n\) distinct functions \(f_{i}(x)\), each satisfying the properties below.
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Electra: A 2D Language

The first appearance of Electra dates back to 2021. While watching the Truttle1’s AsciiDots video, the idea of developing Electra formed in my head. It wasn’t anything special, so I implemented it using simple switch case statements. It was a stack based 2D language with an additional register named “current value”. It only had four directions, and a limited set of instructions. You can still find the legacy Electra on here.
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Bedwars & Math

Bedwars & Math
In 2021, I was playing a lot of bedwars games with a friend of mine. We played rather well together and when we got bored with playing competitively, we started trolling other bedwars players. We’ve done a lot of trolls, but one of them was building obscure bed defenses. For example the defense below is called “The Éclair Defense” and it contains obsidian in its first layer, glass (or clay for some servers) in its second layer and wool for its last layer.
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The “Silly” Solution

The "Silly" Solution
A couple of nights ago, in the Esolangs Discord server, a user named kepe was trying to solve last years’ Canadian Computing Competition (CCC for short) problems. He couldn’t solve some of them, and most importantly he didn’t know graphs well and the next CCC was the next day. So a thread made to help him. After some time, a “troll” joined the thread (She didn’t want me to use her name.
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The First Math Problem I’ve Ever Solved

When I was a little kid, around 4 or 5 years old, I had a dream: I wanted to be in front of everybody else in the world. I know it sounds narcissistic (and in fact, it is) but let’s just set that aside and continue the story. When I was thinking about how I could make that dream a reality, I asked myself, “What does it mean to be in front of somebody?
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