Mathematics is a broad and deep science that deals with the logic of shape, quantity and arrangement. As a discipline (formal field of study), mathematics tends to be defined by the types of problems it addresses, the methods it uses to address these problems, and the results it has achieved. A common classification of math is Pure mathematics and Applied mathematics . The former studies entirely abstract concepts (e.g. Number theory) while the latter describes the professional specialty in which mathematicians work on practical problems by formulating and studying mathematical models (e.g. Statistics, Operation science, Computer science, etc)
This vCalc Mathematics library contains both theoretical and practical content cutting across all the disciplines of Mathematics.