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New posts in recreational-mathematics
Dividing numbers with dots?!
recreational-mathematics
education
The number of bottles of beer one can buy with $10, after exchanging bottles and caps [closed]
recreational-mathematics
puzzle
Sum(Partition(Binary String)) = $2^k$
number-theory
discrete-mathematics
recreational-mathematics
Why was it valid to invent the imaginary unit, $i$?
recreational-mathematics
about a ninth-grade geometry problem
geometry
euclidean-geometry
recreational-mathematics
Cutting numbers into parts
algebra-precalculus
recreational-mathematics
What would you see inside a spherical mirror?
geometry
euclidean-geometry
physics
recreational-mathematics
mathematical-physics
What am I getting for Christmas? Secret Santa and Graph theory
probability
graph-theory
recreational-mathematics
Determining if two Sudoku boards are in the same equivalence class
combinatorics
self-learning
recreational-mathematics
sudoku
Functional equation $4f(x^2+y^2)=(f(x)+f(y))^2$
algebra-precalculus
recreational-mathematics
functional-equations
Counterfeit Coin Problem Variant - Two Counterfeits
discrete-mathematics
recreational-mathematics
Prisoners Problem
elementary-set-theory
recreational-mathematics
puzzle
Number of lines to connect $n \times n$ dots
recreational-mathematics
Question on Concatenation of Prime Numbers
number-theory
prime-numbers
recreational-mathematics
decimal-expansion
Can you draw a curve that captures light?
geometry
measure-theory
recreational-mathematics
A game played on graphs by "flipping" the state of a vertex and its neighbors
combinatorics
graph-theory
recreational-mathematics
A problem about symmetric relations on finite sets.
combinatorics
graph-theory
algorithms
recreational-mathematics
relations
Parallelogram law functional equation: $ f ( x + y ) + f ( x - y ) = 2 \big( f ( x ) + f ( y ) \big) $
real-analysis
recreational-mathematics
functional-equations
Optimal Strategy for Bar Dice
recreational-mathematics
game-theory
dice
$12345679$ and friends
number-theory
recreational-mathematics
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