Newbetuts
.
New posts in recreational-mathematics
How to reach 1000 reputation?
combinatorics
asymptotics
recreational-mathematics
The Farmyard Problem: Minimize the amount of ditch-digging needed to locate a straight pipe under a square piece of land
geometry
optimization
recreational-mathematics
problem-solving
Puzzle: Cut regular tetrahedron into distinct-sized regular tetrahedra?
combinatorics
geometry
recreational-mathematics
discrete-geometry
tiling
Making numbers from 2, 0, 1, 7. Also: are the the iterative factorials and square roots, starting from any $s>2$, dense in $[1,\infty)$?
elementary-number-theory
recreational-mathematics
Classifying all numbers $n$ with the property that if $p$ is a prime, then $p \mid n \iff p-1 \mid n$
number-theory
recreational-mathematics
prime-factorization
Is Conway's "Look and Say Sequence" strictly increasing?
sequences-and-series
number-theory
recreational-mathematics
oeis
Arbitrarily long palindromes in two consecutive number bases
elementary-number-theory
recreational-mathematics
number-systems
palindrome
How do people create difficult, recreational problems (e.g. like those found in competitions such as the IMO)?
soft-question
recreational-mathematics
What is the probability that a solitaire game be winnable?
probability
recreational-mathematics
card-games
Puzzle: Cracking the safe [duplicate]
discrete-mathematics
algorithms
recreational-mathematics
puzzle
Areas of math that can be "gamified"?
recreational-mathematics
education
Find all bijections $\,\,f:[0,1]\rightarrow[0,1],\,$ which satisfy $\,\,f\big(2x-f(x)\big)=x$.
calculus
recreational-mathematics
contest-math
functional-equations
recursion
Interview puzzle with a deck of cards, some cards upside-down
recreational-mathematics
puzzle
Is $3 \ge 1$ or is it just $3 > 1$?
inequality
soft-question
recreational-mathematics
Wrong answers to simple trigonometry questions
algebra-precalculus
trigonometry
recreational-mathematics
4 crystal balls and a 10,000 story building
sequences-and-series
recreational-mathematics
Function that maps the "pureness" of a rational number?
recreational-mathematics
rational-numbers
When the roulette has hit 5 reds why shouldn't I bet to black?
probability
recreational-mathematics
Approximate $\sqrt{e}$ by hand
calculus
sequences-and-series
algebra-precalculus
exponential-function
recreational-mathematics
Beautiful, simple proofs worthy of writing on this beautiful glass door [closed]
soft-question
proof-writing
recreational-mathematics
Prev
Next