# Category:1 (number)

Here is a list of articles in the category **1 (number)** of the Computing portal that unifies foundations of mathematics and computations using computers. In mathematics, **1** is the number of things in a singleton, and it is the identity element for multiplication. This category is for concepts that are related to the number one.

## Subcategories

This category has the following 2 subcategories, out of 2 total.

## Pages in category "1 (number)"

The following 45 pages are in this category, out of 45 total.

- 1
*(computing)*

### 0

- 0.999...
*(computing)*

### E

- Empty product
*(computing)*

### G

- Grandi's series
*(computing)*

### H

- Hapax legomenon
*(computing)*

### I

- Identity element
*(computing)* - Identity function
*(computing)* - Identity matrix
*(computing)*

### L

- Legendre's constant
*(computing)*

### M

- Matrix of ones
*(computing)* - Monogon
*(computing)*

### N

- −1
*(computing)* - Normalizing constant
*(computing)*

### O

- One-dimensional space
*(computing)* - One-dimensional symmetry group
*(computing)* - One-form
*(computing)* - One-parameter group
*(computing)*

### P

- Unipedalism
*(computing)* - Plane unit angle
*(computing)* - Principal root of unity
*(computing)*

### R

- Root of unity
*(computing)*

### S

- Singleton (mathematics)
*(computing)* - Solid unit angle
*(computing)*

### T

- Turn (angle)
*(computing)* - Turn (geometry)
*(computing)*

### U

- Unary numeral system
*(computing)* - Uniqueness quantification
*(computing)* - Unit (ring theory)
*(computing)* - Unit angle
*(computing)* - Unit ball
*(computing)* - Unit circle
*(computing)* - Unit cube
*(computing)* - Unit disk
*(computing)* - Unit fraction
*(computing)* - Unit function
*(computing)* - Unit hyperbola
*(computing)* - Unit impulse
*(computing)* - Unit interval
*(computing)* - Unit length
*(computing)* - Unit plane angle
*(computing)* - Unit set
*(computing)* - Unit solid angle
*(computing)* - Unit sphere
*(computing)* - Unit square
*(computing)* - Unit vector
*(computing)*