CC Skills Mathematics

Mathematics is the numeric system of counting, calculation and measurement, and includes the study of such topics as quantity (Arithmetic), structure (Algebra), space (Geometry), and change (Calculus). Math is typically an adjunct skill – Applied mathematics – to something else, be it accounting or some branch of science.

Within applied mathematics, there are a myriad of specialties, often tied to a science. Other examples to choose from may include: Pure mathematics are rarely practiced in comparison, but this is where theory meets existential philosophy. Also, what started as pure mathematics sometimes gives rise to applied mathematics as new science uncovers questions that only "pure" mathematics (at that point) can address. The cutting edge of physics often intertwines with the halo of pure mathematics.
 * Statistics
 * Computational mathematics

Albert Einstein, Stephen Hawking and that level of physics genius has to lean on mathematics to adequately express their theories on physical law. That level of math starts in the 60s and goes upward quickly.

At its base, pure mathematics include arithmetic, algebra, geometry and calculus.

Characters that are deep in mathematics skills are likely at the level of mission or payload specialists (to lean on NASA culture). Requiring mathematics skill in a character is entirely dependent on the nature of the campaign and refs can reference wikipedia's list of areas of mathematics to find what might be appropriate for their specialist.

Also for reference, some math is required of the Ref and Players, though it's minimal short of finding Dynamic Degrees of Difficulty for ranged combat.