attempt new fp

const fp_delta = () => {
  let p = null;
  return (v) => {
    const t = p == null ? v : p;
    p = v;
    return v - t;
  };
};

const fp_min = (min) => (v) => v < min? min : v;
const fp_max = (max) => (v) => v > max? max : v;
const fp_mul = (val) => (v) => val * v;
const fp_sumStartWith = (v) => {
  let t = v;
  return (v) => {
    t += v;
    return t;
  };
};

const compose = (...args) => (v) => args.reduce((a, c) => c(a), v);

const ali = compose(fp_min(0), fp_delta(), fp_mul(-1), fp_sumStartWith(55), fp_min(0), fp_max(55));