Function factors

src/compute-engine/rubi/normal-form.ts:58–60

(e: Expression)

}

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

function mul(ce: ComputeEngine, fs: Expression[]): Expression {
  let flat = fs.flatMap(factors).filter((f) => !f.isSame(1));