Method reshape

__test__/theorem.js:1341–1347

(array, part)

  	return this.arange(0, n, 1);
  }
  reshape(array, part) {
  	const tmp = [];
  	for (let i = 0; i < array.length; i += part) {
  		tmp.push(array.slice(i, i + part));
  	}
  	return tmp;
  }
  reverse(array) {
  	return array.slice(0).reverse() // duplicate and reverse to duplicate the array
  }