GeomSn {DescTools} | R Documentation |

## Geometric Series

### Description

A geometric sequence is a sequence, such that each term is given by a multiple of q of the previous one. A geometric series consists out of the sum of all former values of a geometric sequence..

### Usage

```
GeomSn(a1, q, n)
```

### Arguments

`a1` |
the first element of the sequence |

`q` |
the factor of the sequence |

`n` |
number of elements to include in the sum |

### Value

the sum as numeric value

### Author(s)

Andri Signorell <andri@signorell.net>

### See Also

### Examples

```
GeomSn(a1=3, q=2, n=5)
# calculates the sum of the first 5 elements of the sequence
(gseq <- 3 * (2^(0:5)))
sum(gseq)
GeomSn(a1=3, q=2, n=0:5)
```

[Package

*DescTools*version 0.99.54 Index]