Method function

src/compute-engine/index.ts:1752–1770

(
    name: string,
    ops: ReadonlyArray<Expression> | ReadonlyArray<MathJsonExpression>,
    options?: {
      metadata?: Metadata;
      form?: FormOption;
      canonical?: CanonicalOptions;
      structural?: boolean;
      scope?: Scope | undefined;
    }
  )

  /** @internal Draw the next uniform in [0, 1).
   *
   * Inside a `WithRandomSeed` frame the draw is the counter-based
   * `hash(seed, n)` of the innermost frame, and the frame's counter advances
   * (u32, wrapping). Outside any frame the draw is LIVE (`Math.random()`):
   * there is no ambient seed to set, so an unframed draw is
   * non-deterministic by construction.
   */
  _random(): number {
    const frame = this._runtimeState.randomFrame;
    if (frame !== undefined) {
      const n = frame.next >>> 0;
      frame.next = (frame.next + 1) >>> 0;
      return frameDraw(frame.seedLo, frame.seedHi, n);
    }
    return Math.random();
  }

  /** @internal A private stream derived from the ambient `WithRandomSeed`
   * frame, for the stochastic ESTIMATORS (Monte-Carlo integration, the
   * sampled equality probe).
   *
   * Unlike `_random()`, this consumes NO indices from the frame: an estimator
   * that samples 1e7 points must not shift a sibling `Random()` draw, and its