Graphing Program Polar Coordinates

Hello.

I am in desperate need of a free polar coordinate graphing program. Basically I am taking field strength measurements around an antenna, and I need to first get polar coordinate graphs, and from this 3 Dimensional graphs.

I will have fields strength measurements at angles e.g. Field Strength (5), 20 degrees etc.

I need a program that will be able to put these on a polar coordinate graph.
And I need to put these values in three dimensions.

Are there any free programs to do this, or does anybody have any suggestions.

Thanks in Advance.

hi,
Look here:

free polar graph paper - Yahoo! Search Results

Or here:
Free Online Graph Paper / Polar

Hi. Thankyou. But I am after software that can plot points.

Microsoft excel...

Okay. But does it do polar coordinates ( I use OpenOffice that's why I am not sure)?.

I guess Geogebra is the right program. It runs on Java.

**broken link removed**

It's not free but DPlot is a good graphing program.

`R' is free and it will do polar plots