integral calculus

the branch of mathematics that deals with integrals, especially the methods of ascertaining indefinite integrals and applying them to the solution of differential equations and the determining of areas, volumes, and lengths.

1720–30 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
integral calculus
Compare differential calculus the branch of calculus concerned with the determination of integrals and their application to the solution of differential equations, the determination of areas and volumes, etc

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Science Dictionary
integral calculus  
The study of integration and its uses, such as in calculating areas bounded by curves, volumes bounded by surfaces, and solutions to differential equations. Compare calculus of variations, differential calculus.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Studying integral calculus might be a bit different.
We were also taught differential and integral calculus as far as trigonometric and exponential functions.
Integral calculus starts with the area under the curve.
There is a formula for length of a curve, using integral calculus.
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