Menu
NEWBEDEV
Python
Javascript
Linux
Cheat sheet
NEWBEDEV
Python
Javascript
Linux
Cheat sheet
New posts in Recreational Mathematics
How many ways to read the palindromic word ROTATOR in this design?
May 10, 2021
Can you draw a curve that captures light?
May 10, 2021
Integral of $1/x^2$ without power rule
May 10, 2021
How few $(42^\circ,60^\circ,78^\circ)$ triangles can an equilateral triangle be divided into?
May 10, 2021
A $2021$ problem: $20\sim 21$ and $43\times 47$
May 09, 2021
Solving Dudeney's "A Question of Cubes": sum of consecutive cubes is a square
May 09, 2021
Is there (or can there be) a general algorithm to solve Rubik's cubes of any dimension?
May 09, 2021
Is there a clever solution to Arnold's "merchant problem"?
May 09, 2021
What's the minimum number of $2$s needed to write a positive integer?
May 09, 2021
Is every natural number the truncation of a prime?
May 09, 2021
Older Entries »