/**
 * Returns the result of multiplying a floating point expansion by 2.
 * * **error free**
 * * see [Shewchuk](https://people.eecs.berkeley.edu/~jrs/papers/robustr.pdf)
 *
 * @param e a floating point expansion
 */
declare function eMultBy2(e: number[]): number[];
export { eMultBy2 };