GB English, or US English?

I would tend to use US-English as that has become the norm in other APIs. Speaking as an English programmer, I don't have any problem using "color", for example.

I'm not a native speaker. In writing, I always try to use en-gb. However, in programming I always use en-us instead of British English for much the same reason that I don't use German or French for my identifiers.

Is the sequence $a_{n+1}=a_n-\frac{1}{a_n}$, $a_0=2$ bounded?

Investigate maxima of Gaussian integral over sphere.

Proving $2+2^2/2+2^3/3+2^4/4+\cdots=0$ elementarily

Why étale?

Sums of integer powers similar to Prouhet–Tarry–Escott problem

Just using $+$ ,$-$, $\times$ using any given n-1 integers, can we make a number divisible by n? (NO bracket allowed!!)

Minimal distance limit problem

Count the number of bases in a subset

Motivation for the study of amoebas.

Evaluating $\int_0^\infty \frac {\cos {\pi x}} {e^{2\pi \sqrt x} - 1} \mathrm d x$

Evaluating the integral $\int_1^{\infty} \int_1^{\infty} \frac{\Gamma(x+1)\Gamma(y+1)}{x y \Gamma(x+y+2)} \ dx \ dy$

Let $f:K\to K$ with $\|f(x)-f(y)\|\geq ||x-y||$ for all $x,y$. Show that equality holds and that $f$ is surjective. [duplicate]