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数学的分支学科。运用极限方法研究函数（即变量间相依关系）。包括微分法和积分法，即微分和积分。微分是从整体研究局部，积分是从局部研究整体。如物体作直线运动时，由运动规律求某一瞬间的运动速度，就是微分问题。反过来，由每一瞬间的运动速度求物体运动的全部路程，就是积分问题。微分和积分是互逆的两种运算。

• Last semester I signed up to take calculus, but I dropped out of class after two weeks -- that kind of math is just too far over my head.

  上学期我报名参加微积分那个班。但是，上了两个礼拜课以后我就退出了。那种数学对我来说实在是太难懂了。

• Any student with a working knowledge of calculus, physics and chemistry should be able to read this book.

  任何一个微积分，物理和化学的工作经验的学生应该能够读这本书。

• After taking college calculus for a few weeks, all her high school algebra started coming back to her.

  她上了几周大学微积分之后，高中代数全想起来了。

• By looking through the survey, we find how students to understand the concept of limits, and the history of Calculus.

  通过问卷调查，了解学生极限思想认知状况、微积分历史了解情况和学习兴趣和意愿。

• At least, you should be able to understand the basic concept of intergration before the end of this period.

  你至少要在这节课结束之前理解一下基本的微积分概念。

• He was a brilliant mathematician; he was one of the inventers of Calculus.

  他也是一位杰出的数学家；，微积分的发明者之一。

• And one of the most profound intangible inventions of the millennium was also the cause of one of its bitterest intellectual battles.

  微积分--这一个千年最伟大的无形发明之一，也造成了一场最痛苦的智力之战。

• Most of these watches are more complicated than college calculus and have more history than you could learn in a lifetime.

  这些手表的原理大多数比大学微积分都还要复杂，对于它们的来历，你一辈子都了解不完。

• By the age of 20, Sir Isaac Newton found a general binomial theorem which lead to the later development of calculus.

  20岁的时候，牛顿发现了一个二项式地理，为以后发展微积分做好了准备。