Voting has closed. The Sand Trap is the winner!
Since we've decided to officially recognize TNB's off-topic room Off-Topic TNB, it might be a good time to give it its own name.
We'll do this the same way we decided on TNB's name; post one room name per answer. If you think the current name is the...
Complexity of a binary matrix
This is a \$4\times 4\$ binary matrix:
$$
\begin{matrix}
1 & 0 & 1 & 0 \\
0 & 1 & 0 & 1 \\
1 & 0 & 0 & 1 \\
0 & 0 & 0 & 1 \\
\end{matrix}
$$
A row-add operation takes one row and adds it to another one where addition is done mod 2. For example adding the second row t...
How powerful must this e approximation be?
code-golfmath
This challenge was inspired by this non-challenge about the natural logarithm base \$e\$ and the following pandigital approximation to \$e\$ appearing on a Math Magic page:
$$\left|(1+9^{-4^{7×6}})^{3^{2^{85}}}-e\right|$$
$$\approx2.01×10^{...
Generate the SMKG aperiodic tiling
Task
Smith, Myers, Kaplan and Goodman-Strauss discovered the first "einstein" - a single connected tile that can tile the plane only aperiodically. They call their tile the "hat". Write a program to generate a finite patch of a tiling of the plane by hats.
De...
In any programming language, make a program that outputs infinite powers of two, starting at any power of two. An example in js might look like this:
var num = 1;
while (true){
console.log(num);
num *= 2;
}
