庞大数字 meaning in Chinese

astronomical figure

His canon of logarithms begins : “ seeing there is nothing that is so troublesome to mathematical practice , nor doth more molest and hinder calculators , than the multiplications , divisions , square and cubical extractions of great numbers , which besides the tedious expense of time are for the most part subject to many slippery errors , i began therefore to consider in my mind by what certain and ready art i might remove those hindrances
他的对数规则一开始是这麽写的：庞大数字的乘法、除法、平方和立方的数学方法十分麻烦，计算起来又相当繁杂，不仅花费大量时间，而且非常容易发生错误，于是我开始构思有什麽方法可以解决问题。