# Net Present Value of a periodic cashflow (NPV)

### Description

Net Present Value of a periodic cashflow (NPV)

### Usage

1 |

### Arguments

`i` |
The rate used to discount the cashflow. It must be effective and with a periodicity that matches that of the cashflow |

`cf` |
The cashflow |

`ts` |
The times on which the cashflow ocurrs. It is assumed that |

### Value

The net present value at

### Examples

1 |