That is to say, guess the answer ahead of time, strip all the decimal places off.

这就是说，提前猜测答案，在解答时注意进位。

麻省理工公开课 - 固态化学导论课程节选

If I go back to that code from a moment ago, and I just rerun math3, notice how many places printed after the decimal point -- two?

如果刚才我回到那段代码中去，我们回到math3，请注意在小数点后面,会打印几位数呢--两位？

哈佛公开课 - 计算机科学课程节选