00-sample.bc

1 + 1

1 + 9 * 20 / 5

(1 + 9) * 20 / 5

let phi = (1 + sqrt(5)) / 2

define fib(n) {
  let psi = 1 - phi;
  return (phi ^ n - psi ^ n) / (phi - psi);
}

fib(1)

fib(3)

fib(10)

define fibrecursive(n) {
  if (n == 1) {
    return 1;
  } else if (n == 2) {
    return 1;
  } else {
    return fibrecursive(n - 1) + fibrecursive(n - 2);
  };
}

fib(10)

fibrecursive(10)

m + 2

10 + 2