My most abstruse class was Advanced CalculusMathematics.
最深奥难懂的课非微积分莫属。
2
But, I use discrete mathematics much more than calculus these days, so I need to go back and look at how to find the answer.
但是在这段时间里，我更多使用的是离散数学而不是微积分，所以我需要复习才能够找出答案。
3
Part of it does seem definitely new — an integral semiotics, as well as an integral calculus, a form of mathematics that replaces variables with perspectives.