Specifications

isproper
16-107
16isproper
Purpose Test if an LTI model is proper
Syntax boo = isproper(sys)
Description isproper(sys) returns 1 (true) if the LTI model sys is proper and 0 (false)
otherwise.
State-space models are always proper. SISO transfer functions or
zero-pole-gain models are proper if the degree of their numerator is less than
or equal to the degree of their denominator. MIMO transfer functions are
proper if all their SISO entries are proper.
Example The following commands
isproper(tf([1 0],1)) % transfer function s
isproper(tf([1 0],[1 1])) % transfer function s/(s+1)
return false and true, respectively.