Function File: C = pidstd (Kp)
Function File: C = pidstd (Kp, Ti)
Function File: C = pidstd (Kp, Ti, Td)
Function File: C = pidstd (Kp, Ti, Td, N)

Return the transfer function C of the PID controller in standard form with first-order roll-off.

                1        Td s
C(s) = Kp (1 + ---- + ----------)
               Ti s   Td/N s + 1

Package: control