v0.7.0

This version introduces a new type TimeEvolution to represent what was previously called Ts, i.e., the sample time for a discrete system or continuous (previously indicated by Ts = -1. You can still access the sample time for a discrete systems with the property .Ts.

This new type is part of the type definition of LTIsystems, i.e., the full type of a state-space object is now on the form

julia> ss(1)
StateSpace{Continuous,Int64,Array{Int64,2}}
D = 
 1

Continuous-time state-space model

Some new functions:

• timeevol(Lti) -> TimeEvolution (not exported)
• isdiscrete