Method ceil

__test__/theorem.js:1147–1149

(n)

      return new BN(num[0].slice(0, n + 2))
  }
  ceil(n) {
  	return new BigNumber(n).integerValue(BigNumber.ROUND_CEIL)
  }
  get e() {
  	const n = 15
  	const BN = BigNumber.clone({ DECIMAL_PLACES: n })