an extremely simple program shows a 2D structure in the integers
This seems unlikely to be a "new" idea, but I stumbled into it by accident and thought it was cool. Java source code below: // This class is in the public domain. public class Numbers { public static void main(String[] args) { int numRows = 256; int numColumns = 128; for (int row = 0; row < numRows; row++) { StringBuilder rowOutput = new StringBuilder(); for (int column = 0; column < numColumns; column++) { if ((row & column) != 0) rowOutput.append("1"); else rowOutput.append("0"); } System.out.println( String.format("row/col %s:\t%s", row, rowOutput.toString())); } } }
Does the same job
all alternatives →- IPInteger Programming in the Browser2017 · strandmark.net · ▲52
- IMI made a calculator that works over disjoint sets of intervalsApr 2026 · victorpoughon.github.io · ▲314
I've been studying interval arithmetic for the past few weeks and it's a really interesting field because while there is a ton of super interesting research published over the past decades, it has never really gotten the recognition that it deserves, IMO. One reason for this is that standard interval arithmetic has really poor handling of division by intervals containing zero. If you compute 1 / [-1, 2] in regular interval arithmetic, you get either [-∞, +∞], or you have to say that the operation is undefined. Both solutions are virtually useless. The real answer of course is [-∞, -1] U…
- ANAlgebraic Number Theory in Python 32018 · github.com · ▲157
Higher-dimensional lattices unfolded into the 2D planeAug 2026 · number-garden.com · ▲18Visit the URL to explore what happens. Double-click or press “N” to generate a new experiment. Press “A” to learn more about how it works.
- PNPrime numbers visualization2017 · prime-numbers.info · ▲21
- APA programming language that uses only parentheses2012 · github.com · ▲55
More dev tools this month
the category →
Open-source GTM skills for technical founders
Dev tools · 29d ago · gtmcofounder.com
OpenTrailPaper is open-source bike computer firmware for the LilyGO T5S3 4.7" E-Paper PRO. It supports offline maps, GPX routes, FIT recording and Bluetooth sensors.
Dev tools · 2d ago · opentrailpaper.com
Launched alongside, March 2014
the whole month →
- MI
Life & fun · 2014 · voxelquest.com
- AS
Life & fun · 2014 · mysliderule.com
- IV
Life & fun · 2014 · lessmilk.com
- RT
Life & fun · 2014 · scoutapp.github.io
