When the appropriate conditions above are satisfied a system is said to be marginally stable; in this case the system transfer function has non-repeated poles at complex plane origin ( i . e . their real and complex component is zero in the continuous time case ).
42.
Fremont Investment Advisors of San Francisco has agreed to pay $ 2 . 1 million ( euro1 . 63 million ) in restitution and $ 2 million ( euro1 . 55 million ) in civil penalties to end a mutual fund timing case, New York Attorney General Eliot Spitzer announced Thursday.
43.
The bilinear transform is an alternative to impulse invariance that uses a different mapping that maps the continuous-time system's frequency response, out to infinite frequency, into the range of frequencies up to the Nyquist frequency in the discrete-time case, as opposed to mapping frequencies linearly with circular overlap as impulse invariance does.
