Maths

Glossary

Number Systems

• ℕ - The set of natural numbers. No zero. No negatives. Subtraction and division aren't always possible. ℕ = {1, 2, 3, ...}.
• ℤ - The set of integers. ℤ = {..., -3, -2, -1, 0, 1, 2, 3, ...}
• ℝ - The set of real numbers. ℝ+ positive reals.
• ℚ - The set of rational numbers (Quotient). Fractions.
• ℂ - The set of complex numbers.

Algebraic Structures

• Set - A collection of elements.
• Group - A set with a binary operation. The operation must be associative. If the operation is commutative then it is an Abelian group.
• Field -