'''Calculus''' is the [[mathematics|mathematical]] subject that studies rates of change of functions. There are several branches of calculus, including [[derivative|differential]] calculus, [[integral]] calculus, single [[variable]] calculus, [[exterior calculus]], and multi [[variable]] calculus. | '''Calculus''' is the [[mathematics|mathematical]] subject that studies rates of change of functions. There are several branches of calculus, including [[derivative|differential]] calculus, [[integral]] calculus, single [[variable]] calculus, [[exterior calculus]], and multi [[variable]] calculus. |