Spinors

💡 Ideas
1

Spinors (Pronounced "Spinners") are complex vector space spin groups whose rotational half-period exceeds that of the standard half-circle

Spinors are used, among other things, to model the spin of subatomic particles and electrons

Spinors are best represented in javascript, as one or more nested for-loops, within a conditional (or indefinite!) while-loop


let a = [ // var k
    [ // var j
        [0,1,2,3,4] // var i
    ],
    [
        [5,6,7,8,9]
    ],
]
let b = 0
while(1){ // always true
    for(var k=0;k<2;k++){ // turn (3)
        for(var j=0;j<1;j++){ // turn (2)
            for(var i=0;i<5;i++){ // turn (1)
                b = b + 1 - 1
                a[k][j][i] = b++
            }
        }
    }
    break // formalizes the mobius completion
}

I propose to make the representation of these -- or other nested and indefinite loops, more compact



mobius-spinor-loop(var i=0,j=0,k=0; i<5,j<1,k<2; k++,j++,i++, break){ // Incrementing order is important!
    b = b + 1 - 1
    a[k][j][i] = b++
}
1 Like
2

Well, there are already iterators, so you could just write:

const range = (start, end) => function*() { for(let i = start; i < end; i++) yield i; };
function* nested (outer, ...inner) {
  if(!outer) { yield []; return; }
  for(const v of outer()) 
    for(const i of nested(...inner))
      yield [v, ...i];
}

for(const [i, j, k] of nested(range(0, 5), range(0, 1), range(0, 5))) {
  // ...
}

Why do you see the need for a new keyword mobius-spinor-loop, if this can easily already be achieved quite elegantly with existing language constructs, and is probably not used that often?

3

Also known as power loops. For good reason, these never caught on.