Using a fairly simple approach to approximate a function.

```
var log = console.log
var { acos, pow } = Math
const zeta = (arg, max = 1 / 0) =>
{
let last = 0
let sum = 0
let base = 1
for(;;)
{
sum += 1 / pow(base++, arg)
if(sum == last)
break
last = sum
if(base >= max)
break
}
return sum
}
var pi = acos(-1)
var tau = 2 * pi
var theta = pow(tau, 2) / 24
log(pi)
log(tau)
log(theta)
log(zeta(2))
```

For some reason it doesn’t converge as expected though. Any help would be greatly appreciated!