Function root

src/compute-engine/interval/elementary.ts:306–307

(x: number)

    Math.pow(baseVal.hi, expVal.lo),
    Math.pow(baseVal.hi, expVal.hi),
  ];
  return ok({ lo: Math.min(...corners), hi: Math.max(...corners) });
}

/** The point interval 1, the dividend of the reciprocal in `powRationalRaw`.