Change in unit vectors

[khfrekek1992]

Homework Statement

In cylindrical coordinates: what is d(theta-hat)/d(theta)?

Homework Equations

The Attempt at a Solution

I'm fairly certain it is -rho... without a direction? or is it -rho*theta-hat?

Thanks in advance!

 

[Doc Al]

$$-\hat r$$

 

[khfrekek1992]

ooh, awesome, that fixes the problem I was having.. thank you!