Derivative of relativistic momentum

[Gyroscope]

Homework Statement

Would someone teach me how to do:

$$\frac{\bold dp}{\bold dt}$$

I am deducing for myself all relativity, but I don't know how to do this now. It is not homework, it's self teaching. Thanks in advance.

 

[denverdoc]

er, would that be special or general flavor?
John S