Methodos Primers 1: Sets, Relations, Functions
Methodos Primers 1: Sets, Relations, Functions
Sets
Relations
Functions
分类 Math 下的文章
Weekly Math (30/10 - 5/11)
Weekly Math (30/10 - 5/11)
Point
Reference
1. Point
Logarithms find the cause for an effect, i.e the input for some output
Math Weekly (23/10 - 29/10)
Math Weekly (23/10 - 29/10)
Point
Reference
1. Point
2^10 ~ thousand (1 kb) / 2^20 ~ million (1 mb) / 2^30 ~ billion (1 gb)
数的定义
数的定义
| 数 | 定义 | WIKI |
|---|---|---|
| Integer | An integer (from the Latin integer meaning "whole")[note 1] is a number that can be written without a fractional component. | Integer |
| Postive Number | A number is positive if it is greater than zero. | Sign (mathematics) |
| real number | a value that represents a quantity along a line | Real Number |
| Negative number | a negative number is a real number that is less than zero. | Negative number |
| Rational Number | In mathematics, a rational number is any number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. | Reational number |
| Irrational number | irrational number is a real number that cannot be expressed as a ratio of integers, i.e. as a fraction. | Irrational number |
| Logarithm | In mathematics, the logarithm is the inverse operation to exponentiation. | Logarithm |
The rational numbers (ℚ) are included in the real numbers, and in turn include the integers (ℤ), which include the natural numbers (ℕ)