[OpenLayers-Users] Is ther a formular to work out OpenLayers maxResolution?

[Neil Fincham]

Hi All,

I am using EPSG:2193 (OpenLayers.Bounds(983515.7211, 4728776.8709,
2117458.3527, 6223676.2306)) and I am trying to work out my maxResolution.
I have searched around a bit and found very good examples of what it is and
why it important but no direct example of how to calculate it.

If someone could point me in the right direction it would be greatly
appreciated, I would even go as far as creating a simple web calculator for
it and submitting it to the WIKI.

Thanks

Neil