Lambda Calculus Interpreter(lambda-calculus-interpreter.netlify.app)

13 points by evilotto 2 years ago | 9 comments

Show HN: I wished for a site with a growing list of math problems, I built it(teachyourselfmath.app)

323 points by viveknathani_ 2 years ago | 80 comments

teachyourselfmath is a site listing a growing feed of math problems extracted from PDFs and textbooks, filterable by topic with discussion threads.

Show HN: I'm building a tool to practice numbers in Arabic(arabic-numbers.koljapluemer.com)

39 points by blackbrokkoli 3 years ago | 25 comments

Ohm Editor(ohmjs.org)

30 points by andsoitis 11 months ago | 7 comments

List animals until failure(rose.systems)

321 points by l1n 8 months ago | 173 comments

A browser word game where players type as many animal names as they can before a one-minute timer runs out.

Calculate the difference and intersection of any two regexes(phylactery.org)

325 points by posco 3 years ago | 108 comments

An interactive web tool that computes complement, intersection, difference, equivalence and DFAs for two entered regular expressions.