Function rebuilt

src/compute-engine/rubi/normal-form.ts:49–56

(
  ce: ComputeEngine,
  e: Expression,
  ops: Expression[]
)

}

function rebuilt(
  ce: ComputeEngine,
  e: Expression,
  ops: Expression[]
): Expression {
  if (ops.every((o, i) => o === e.ops![i])) return e;
  return ce._fn(e.operator, ops);
}

function factors(e: Expression): Expression[] {
  return e.operator === 'Multiply' && e.ops ? [...e.ops] : [e];