# Question: What Does A Colon Between Two Numbers Mean?

## What does A -> B mean?

We write f(a)= b if b is the unique element of B assigned by the function f to the element a of A.

Iff is a function from A to B, we write f : A → B..

## What is this symbol φ?

Phi (uppercase/lowercase Φ φ), is the 21st letter of the Greek alphabet, used to represent the “ph” sound in Ancient Greek. This sound changed to “f” some time in the 1st century AD, and in Modern Greek the letter denotes the “f” sound. … The letter Phi is used to represent the golden ratio (which is about 1.618).

## What is the symbol for a colon?

The colon (“:”) is a punctuation mark, visually consisting of two equally sized dots centered on the same vertical (up/down) line.

## How do you read Phi?

The generally accepted pronunciation of phi is fi, like fly. Most people know phi as “fi,” to rhyme with fly, as its pronounced in “Phi Beta Kappa.” In Dan Brown’s best selling book “The Da Vinci Code,” however, phi is said to be pronounced fe, like fee.

## What Does a colon mean in set notation?

In this notation, the colon (“:”) means “such that”, and the description can be interpreted as “F is the set of all numbers of the form n2 − 4, such that n is a whole number in the range from 0 to 19 inclusive.” Sometimes the vertical bar (“|”) is used instead of the colon.

## What number is B in math?

The binary number system is “base 2” which means that it uses just two digits: 0 and 1. Computers speak in binary numbers! Example: 110101 is binary for 53 in our regular number system (base 10).

## How many types of sets are there?

Answer: There are various kinds of sets like – finite and infinite sets, equal and equivalent sets, a null set. Further, there are a subset and proper subset, power set, universal set in addition to the disjoint sets with the help of examples. Question 4: What are the properties of sets?

## What are the 24 Greek letters?

These twenty-four letters (each in uppercase and lowercase forms) are: Α α, Β β, Γ γ, Δ δ, Ε ε, Ζ ζ, Η η, Θ θ, Ι ι, Κ κ, Λ λ, Μ μ, Ν ν, Ξ ξ, Ο ο, Π π, Ρ ρ, Σ σ/ς, Τ τ, Υ υ, Φ φ, Χ χ, Ψ ψ, and Ω ω….Greek alphabetGreece.Cyprus.European Union.

## What does := mean in maths?

Loading when this answer was accepted… It is borrowed from computer programming: it means that the item on the left hand side is being defined to be what is on the right hand side. For example, y:=7x+2. means that y is defined to be 7x+2. This is different from, say, writing 1=sin2(θ)+cos2(θ)

## What does double colon mean in math?

Thus, proportion is equality of two ratios. In order to represent a proportion; either put the sign of equality (=) between the two ratios or put a double colon (::). Thus, 3, 4, 9 and 12 are in proportion and is expressed as: 3 : 4 = 9 : 12 or 3 : 4 :: 9 : 12.

## What does * mean in texting?

When ** is put around around words, it means an action. For example. *Throws phone at wall after reading stupid comment* *bangs head on wall after realizing i sent a super cringey text* Of course I don’t actually do this, it’s just for show as an exaggeration in text.

## How does a colon work in grammar?

The colon is used to separate two independent clauses when the second explains or illustrates the first. In such usage, the colon functions in much the same way as the semicolon. As with the semicolon, do not capitalize the first word after the colon unless the word is ordinarily capitalized.

## Which sign is at least?

The notation a ≥ b or a ⩾ b means that a is greater than or equal to b (or, equivalently, at least b, or not less than b).

## What is PHI used for?

PHI stands for Protected Health Information and is any information in a medical record that can be used to identify an individual, and that was created, used, or disclosed in the course of providing a health care service, such as a diagnosis or treatment.

## What is a colon key?

A colon is a symbol that resembles two vertical periods ( : ) and found on the same key as the semicolon on standard United States keyboards. … Keyboard help and support.

## What does BS stand for sexually?

beliefs about SexWhat does bs stand for? bs stands for “beliefs about Sex”

## What is set Give 5 examples?

Example: Set A = {1,2,3,4} and set B = {5,6,7,8} are disjoint sets, because there is no common element between them.

## What is an example of set builder notation?

A set-builder notation describes or defines the elements of a set instead of listing the elements. For example, the set { 1, 2, 3, 4, 5, 6, 7, 8, 9 } list the elements. … We read the set { x / x is a counting number less than 10 } as the set of all x such that x is a counting number less than 10.