Draft:Calculus
Calculus is the field of mathematics that studies rates of change. It has two components: the differential calculus, which studies rates of change, and the integral calculus, which studies accumulated change. Rolle's theorem unites the subject by showing that differentiation and integration are inverse operations. Calculus has wide ranging applications across the sciences and so is required as a subject at virtually all universities for students of science.
Within a century of its original development, multiple crank pseudomathematicians published unsound refutations of calculus. To this day, pseudomathematicians dispute the truth of calculus and its implications, such as the fact that 0.999... equals 1. Like quantum woo, cranks are also known to cite calculus, its terminology and its expressions as an attempt to justify their crankery with technobabble.