# A function described by a table

## A function described by a table

I have a function, resulting from a simulation process, that it's described by a table. Is it possible to draw it with the calculator?

**Sergio**- Guest

## Re: A function described by a table

I'm not sure what you mean by a function that is described by a table! Could you give an example?

**runiter**- Admin
- Posts : 132

Join date : 2007-12-05

Age : 38

Location : Boston, MA, USA

## Re: A function described by a tab

Yes, it's very simple. You know in 2D, for instance, you have a function like y = m*x + b. But suppose that instead of having such an equation you have a table like:

which corresponds to y = x + 2.

I know that in other posts you have considered the ploting of isolated dots, but this is different. My question is if you have considered the possibility of allowing the user to build a function that takes data from an outside source, e.g. a data file, to compute its value, by means of interpolation for instance or any other algorithm.

Thanks.

Sergio.

y | x |

0 | 2 |

2 | 4 |

4 | 6 |

which corresponds to y = x + 2.

I know that in other posts you have considered the ploting of isolated dots, but this is different. My question is if you have considered the possibility of allowing the user to build a function that takes data from an outside source, e.g. a data file, to compute its value, by means of interpolation for instance or any other algorithm.

Thanks.

Sergio.

**Sergio**- Guest

## Re: A function described by a table

Currently you can, in addition to plotting points, connect the points together with lines as shown below:

This would be same as interpolating in between points, isn't it?

This would be same as interpolating in between points, isn't it?

**runiter**- Admin
- Posts : 132

Join date : 2007-12-05

Age : 38

Location : Boston, MA, USA

## Re: A function described by a table

Ok. The question is then this: Is it possible to populate these tables (either 2D or 3D) with information coming from an external source, a text file or an excel file for instance?

Thanks.

Thanks.

**Sergio**- Guest

## Re: A function described by a table

It will be in the next version (v3.0) which will be release in two weeks (possibly earlier). We already implemented a way to load .csv files with coordinates. Pretty much all excel files may be saved as .csv files.

**runiter**- Admin
- Posts : 132

Join date : 2007-12-05

Age : 38

Location : Boston, MA, USA

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