Method e

__test__/theorem.js:1150–1162

()

  	return new BigNumber(n).integerValue(BigNumber.ROUND_CEIL)
  }
  get e() {
  	const n = 15
  	const BN = BigNumber.clone({ DECIMAL_PLACES: n })
      let zero = new BN(0);
      let one = new BN(1);
  
      for (let i = 0; i <= n * 10; i++) {
          let fval = this.factorial(i);
          let invert = one.div(fval)
          zero = zero.plus(invert)
      }
      return new BN(zero);
  }
  floor(n) {
  	return new BigNumber(n).integerValue(BigNumber.ROUND_FLOOR)
  }