fundamental theorem of calculus

...to the rectangle whose sides are unity and the ordinate of the original curve. When reformulated analytically, this result expresses the inverse character of differentiation and integration, the fundamental theorem of the calculus (see the figure). Although Barrow’s decision to proceed geometrically prevented him from taking the final step to a true calculus, his lectures influenced both...

The process of calculating integrals is called integration. Integration is related to differentiation by the fundamental theorem of calculus, which states that (subject to the mild technical condition that the function be continuous) the derivative of the integral is the original function. In symbols, the fundamental theorem is stated...

Two major steps led to the creation of analysis. The first was the discovery of the surprising relationship, known as the fundamental theorem of calculus, between spatial problems involving the calculation of some total size or value, such as length, area, or volume (integration), and problems involving rates of change, such as slopes of tangents and velocities (differentiation). Credit for the...

This hard-won result became almost a triviality with the discovery of the fundamental theorem of calculus a few decades later. The fundamental theorem states that the area under the curve y = f(x) is given by a function F(x) whose derivative is f(x), F′(x) = f(x). The fundamental theorem...

...discovery of Newton and Leibniz was that finding the derivatives of functions was, in a precise sense, the inverse of the problem of finding areas under curves—a principle now known as the fundamental theorem of calculus. Specifically, Newton discovered that if there exists a function F(t) that denotes the area under the curve y = f(x) from,...