@alcorexchange/alcor-swap-sdk/src/utils/encodeSqrtRatioX64.ts

## Installation ​​ **npm** ``` npm i @alcorexchange/alcor-swap-sdk ``` **yarn** ``` yarn add @alcorexchange/alcor-swap-sdk ``` ## Usage ### Import:

import JSBI from "jsbi";
import { sqrt } from ".";
import { BigintIsh } from "../internalConstants";

/**
 * Returns the sqrt ratio as a Q64.64 corresponding to a given ratio of amountB and amountA
 * @param amountB The numerator amount i.e., the amount of tokenB
 * @param amountA The denominator amount i.e., the amount of tokenA
 * @returns The sqrt ratio
 */

export function encodeSqrtRatioX64(
  amountB: BigintIsh,
  amountA: BigintIsh
): JSBI {
  const numerator = JSBI.leftShift(JSBI.BigInt(amountB), JSBI.BigInt(128));
  const denominator = JSBI.BigInt(amountA);
  const ratioX128 = JSBI.divide(numerator, denominator);
  return sqrt(ratioX128);
}