Maths: Difference between revisions
Jump to navigation
Jump to search
| Line 2: | Line 2: | ||
==Number Systems== |
==Number Systems== |
||
* ℕ - The set of natural numbers. No zero. No negatives. Subtraction and division aren't always possible. ℕ = {1, 2, 3, ...}. |
* 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, ...} |
* ℤ - The set of integers. Subtraction is always possible. ℤ = {..., -3, -2, -1, 0, 1, 2, 3, ...} |
||
| ⚫ | |||
* ℚ - The set of rational numbers (Quotient). Fractions. |
* ℚ - The set of rational numbers (Quotient). Fractions. |
||
* |
* ℝ - The set of real numbers. ℝ⁺ positive reals. √(2) |
||
| ⚫ | |||
==Algebraic Structures== |
==Algebraic Structures== |
||
Revision as of 23:54, 16 February 2017
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. Subtraction is always possible. ℤ = {..., -3, -2, -1, 0, 1, 2, 3, ...}
- ℚ - The set of rational numbers (Quotient). Fractions.
- ℝ - The set of real numbers. ℝ⁺ positive reals. √(2)
- ℂ - The set of complex numbers. i²=-1
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 -