Gravity on Stations

Anyone have the formulas for computing gravity on a station?<br /><br />I know its increases the farther one is from the hub which is 0<br />and is a function of the rotation of a station.<br /><br />Since bigger stations have greater rotation I imagine they also rotate slower so as to not squash the inhabitants of the outer most deck.<br /><br /><img src="/files/u4436/Tintin5B.jpg" width="350" height="350" /><br />