What is the Steady State Tracking Error in Control Systems?

[magnifik]

I am trying to understand steady state tracking error. I was looking over one of the example problems in my textbook and this is what it said:

G(s) = (-1)/(100(s^2-10.791))
D(s) = K(s+5)/(s+10)
Td(s) = 1/s as it states above

I don't understand how they got the value 3300... I got 2156 when solving for K

 

[gneill]

Always use natural units; Convert 0.1° to radians.

 

[magnifik]

thank you! i thought the degree sign was a 0 this whole time -___-