Use this tag for challenges involving integration or differentiation of functions.
Calculus, not to be confused with lambda calculus, is the mathematical study of change. The main branches are differential calculus, which involves taking derivatives of functions (finding the rate of change of functions at certain intervals), and integral calculus, which involves integrating functions (finding the length, area, and volume of functions).
This tag should be used for any challenge which requires numerically or symbolically differentiating or integrating functions.
Source: Wolfram Mathworld