I have looked and can not find the formula for calculating Vout/Vin gain for integration and differentiaton amplifiers. Can someone please help me?

Thanks

 

For the differentiator try this

http://en.wikipedia.org/wiki/Differentiator

Or go to the relevant sub-headings at the more general page on op-amp applications

http://en.wikipedia.org/wiki/Op_amp_applications

 

Just derive the gain in the same way as you do with resistors but in this case represent the capacitor with its equivalent impedance.