N-gated Hacker News5d ago
Why doesn't #Mathematica simplify sinh(arccosh(x))? Because apparently, it takes a PhD in #Trigonometry, a magnifying glass, and a deep existential crisis to venture into that rabbit hole. 🤔🔍 Just when you thought it was all about cosines and sines, hyperbolics crash the party and demand their own dissertation. 📚🎉
https://www.johndcook.com/blog/2026/03/10/sinh-arccosh/ #Hyperbolic #Functions #MathProblems #ExistentialCrisis #HackerNews #ngated
Why Mathematica does not simplify Sinh[ArcCosh[x]]

When Mathematica seems to not to know how to simplify an expression, it may be doing the right thing, being more sophisticated than you expect.

John D. Cook | Applied Mathematics Consulting
🍎 Taylor Twins 🍏Mar 7
#DeadMath #MathMemes #MathStruggles #EducationalComedy #MathTutorial #MathHumor #StudentLife #LearningMath #MathFun #InstaMath #MathIsHard #MathProblems #MathLife #MathChallenges #FunnyMath #ComedyMath #MathLovers #MathWoes #Edutainment #MathCancelled @[email protected] @[email protected]
Negative PID SLFeb 27

The A858 puzzle

https://negativepid.blog/the-a858-puzzle/

#cryptography #A858 #puzles #internetMysteries #math #mathProblems #digitalInvestigations #OSINT #SOCMINT #HUMINT #socialEngineering #cyberInvestigations #intelligence #darkWeb #negativepid

The A858 puzzle - Negative PID

The A858DE45F56D9BC9 (often shortened to A858) puzzle is an unresolved Internet mystery that has been captivating cryptography experts for years.

Negative PID
NewsletterTFFeb 17

Three-Question Test Claims to Measure Cognitive Ability

A short math test with 3 questions is going viral online. Many people cannot answer them correctly. Learn about the test and why it's tricky.

#IQTest, #MathProblems, #CognitiveTest, #BrainTeaser, #OnlineTest

https://newsletter.tf/short-math-test-3-questions-online/

NewsletterTFFeb 17

A quick math test with just three questions is popular online. It's called the Cognitive Reflection Test. Most people find it hard to answer all the questions right. It tests how we think.

#IQTest, #MathProblems, #CognitiveTest, #BrainTeaser, #OnlineTest

https://newsletter.tf/short-math-test-3-questions-online/

Short Math Test Asks 3 Questions, Many People Get Them Wrong

A short math test with 3 questions is going viral online. Many people cannot answer them correctly. Learn about the test and why it's tricky.

Hacker NewsNov 21

My Favorite Math Problem

https://bytesauna.com/post/my-favorite-math-problem

#HackerNews #My #Favorite #Math #Problem #math #mathproblems #problem-solving #HackerNews #Bytesauna

My favorite math problem | ByteSauna

There’s one math problem I find surprisingly deep in how it connects simple puzzles to profound ideas in logic, proof, and the rise of AI in mathematics.

N-gated Hacker NewsNov 12
🔢🤓 Ah yes, Project Euler: the ultimate playground for those who find their math curriculum too "basic" but still enjoy the thrill of solving problems that bring back the joys of high school algebra. 🎓 Because what's more fun than mixing math with programming to really spice up your free time? 🖥️
https://projecteuler.net #ProjectEuler #MathProblems #CodingFun #ProblemSolving #LearningThroughPlay #HackerNews #ngated
About - Project Euler

A website dedicated to the fascinating world of mathematics and programming

wolfkinOct 19

https://youtu.be/zbjkGXZim0o

I think the "fee/interest" argument made by "Wrath of Math" here is silly because it implies someone so heavily invested in math has apparently never heard of a friction-less plane in a vacuum.

It's a math problem guy we're not actually concerned about paying back the pawn broker's fees.

#YouTube #Math #WrathOfMath #mathpuzzle #riddles #puzzle #mathproblems

Is there actually $10 missing?

YouTube
N-gated Hacker NewsJun 28, 2025
🐦🔍 "Breaking News: BusyBeaver(6) Is Large! 🚀 Apparently, math problems are big! Who knew? 🤔 Meanwhile, quantum computers won't save the day by magically solving hard problems. 😱 Also, don't miss tips on educational reform buried somewhere in this existential crisis. 📚🌪️"
https://scottaaronson.blog/?p=8972 #BusyBeaver #QuantumComputers #MathProblems #EducationalReform #ExistentialCrisis #HackerNews #ngated
BusyBeaver(6) is really quite large

For overdetermined reasons, I’ve lately found the world an increasingly terrifying and depressing place. It’s gotten harder and harder to concentrate on research, or even popular scienc…

Shtetl-Optimized
N-gated Hacker NewsMay 31, 2025
🤯 Wow, a sentence that counts its own letters! 🧐 Because nothing screams "fun" like a linguistic math problem that makes you wish you'd stuck to counting sheep. 🐑 Let's hope no one's developing a dependency on #autograms for their weekend excitement! 😂
https://curiosityarb.blog/2024/12/01/searching-for-autograms.html #linguisticfun #mathproblems #countingletters #weekendvibes #HackerNews #ngated
Searching for Autograms | CuriosityArb