You use dot signs in different ways. Sometimes just dot signs are provided, sometimes more than one dot is used and also dot symbols are supplied over and inside the letter.

You watching: Latex dot above variable

In this tutorial, we will talk about detailed the use of all kinds of dot signs and also latex commands.

## Simple dot symbol

In latex, the basic dot symbol is stood for by the cdot command. And you might have actually seen its usage in vector dot assets.

Properties | Value |

Symbol | Dot |

Package | Default |

Command | cdot |

Argument | No |

Example | cdot → • |

documentclassarticleegindocument $$ cdot $$ $$ vecimath cdot vecjmath$$enddocument**Output :**

documentclassarticleusepackagephysicsegindocument $$ vdot $$ $$ vecp vdot vecq$$enddocument**Output :**

## Latex three dots symbol

When you usage n number elements to recurrent a mathematical expression. In that situation, the three-dot symbol is offered without marking each facet in the expression.Horizontal dots | ldots |

Horizontal dots | cdots |

Vertical dots | vdots |

Diagonal dots | ddots |

Inverse Diagonal dots | iddots |

Also, tbelow are many type of regulates. In this tutorial, we will only discuss the above five regulates.

### 1. Horizontal dots on the line

You look at the program listed below. Three dots have been provided together with the ldots command also.

documentclassarticleegindocument $$ a_1, a_2,...,a_n $$ $$ a_1, a_2,ldots,a_n$$enddocument**Output :**

### 2. Horizontal dots above the line

For example, the cdots command is supplied as soon as the sum of n numbers is presented.

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documentclassarticleegindocument $$ f(x)=x+ x^2+cdots+x^n $$ enddocument**Output :**

### 3. Vertical dots

Vertical dot consists of three-dot icons, which are located vertically. And this symbol is represented by vdots Command also.

documentclassarticleusepackageamsmathegindocument $$eginbmatrix a_1\ a_2\ vdots\ a_n endbmatrix$$enddocument**Output :**

### 4. Diagonal dots symbol

This symbol is located along the diagonal from N-W to S-E. And this symbol is mainly offered to reexisting the elements situated along the diagonal of the matrix.

documentclassarticleusepackageamsmathegindocument eginbmatrix a_1 & & \ & ddots & \ & & a_n endbmatrixenddocument**Output :**

### 5. Inverse Diagnal dots symbol

The inverse diagonal dots symbol will be located along the S-W to N-E direction. Tright here is even more than one command to represent this symbol but this tutorial will only discuss iddots commands.

documentclassarticleusepackageamsmathusepackagemathdots egindocument $$ eginbmatrix & & a_1\ & ddots & \ a_n & & endbmatrix $$ enddocument**Output :**

## Latex dot derivative

When a variable is derivative in respect of time, the time derivative is stood for by a dot symbol on the head of that variable.

documentclassarticleegindocument $$fracmathitdrmathitd t=dotr$$ $$fracmathitd^2rmathitd t^2=ddotr$$enddocument**Output :**