# What are the 4 mathematical symbols?

## What are the 4 mathematical symbols?

Basic Maths Symbols

- + plus sign / addition sign.
- – minus sign / subtraction sign.
- × times sign / multiplication sign.
- ÷ OR / division sign.
- = equals sign.
- < less than.
- > greater than.
- ≠ NOT equal to.

### What is this symbol for in math?

Basic Mathematical Symbols With Name, Meaning and Examples

Symbol | Symbol Name in Maths | Math Symbols Meaning |
---|---|---|

± | plus – minus | both plus and minus operations |

× | times sign | multiplication |

* | asterisk | multiplication |

÷ | division sign / obelus | division |

#### What is ≈ called?

The symbol ≈ means approximately equal to.

**What is this Σ?**

The symbol Σ (sigma) is generally used to denote a sum of multiple terms. This symbol is generally accompanied by an index that varies to encompass all terms that must be considered in the sum.

**What does ∈ mean in math?**

is an element of

The symbol ∈ indicates set membership and means “is an element of” so that the statement x∈A means that x is an element of the set A. In other words, x is one of the objects in the collection of (possibly many) objects in the set A.

## What does ∼ mean?

approximately equal to

“∼” is one of many symbols, listed in the Wikipedia article on approximation, used to indicate that one number is approximately equal to another. Note that “approximately equal” is reflexive and symmetric but not transitive. “∼” is one of many symbols used in logic to indicate negation.

### How do you use ∑?

A series can be represented in a compact form, called summation or sigma notation. The Greek capital letter, ∑ , is used to represent the sum. The series 4+8+12+16+20+24 can be expressed as 6∑n=14n . The expression is read as the sum of 4n as n goes from 1 to 6 .

#### What does ⋅ mean?

× multiplication sign

The ⋅ is the same as the × multiplication sign, but it is often used in mathematical notations to prevent possible confusion with the letter ‘x’. e.g. y × x is often written as y ⋅ x. ÷ Division, divide. This is used to indicate that one number is divided by another, e.g. 3 ÷ 2 = 1.5.

**What does ∩ mean in math?**

intersection

∩ The symbol ∩ means intersection. Given two sets S and T, S ∩ T is used to denote the set {x|x ∈ S and x ∈ T}. For example {1,2,3}∩{3,4,5} = {3}. \ The symbol \ means remove from a set. Given two sets S and T, S\T is used to denote the set {x|x ∈ S and x /∈ T}.

**What is ∈ called?**

Notation and terminology The relation “is an element of”, also called set membership, is denoted by the symbol “∈”. Writing. means that “x is an element of A”. Equivalent expressions are “x is a member of A”, “x belongs to A”, “x is in A” and “x lies in A”.

## What does ∼ mean in math?

“∼” used between two math expressions is called the tilde operator. For functions f and g, the statement “f∼g” means that f is asymptotic to g. “∼” is one of many symbols, listed in the Wikipedia article on approximation, used to indicate that one number is approximately equal to another.