differential calculus
From Longman Dictionary of Contemporary EnglishRelated topics: Mathsdifferential calculusˌdifferential ˈcalculus noun [uncountable] HMHMa way of measuring the speed at which an object is moving at a particular momentExamples from the Corpusdifferential calculus• The package is designed to solve, through symbolic manipulation, problems in differential calculus.• In order to achieve all this, Newton had to develop many mathematical techniques-in addition to differential calculus.