Your answer seems good to me, well thought out and illustrated. -Christen Juzeszyn


This is an excellent answer, well formed and well documented. It clearly shows the correct way to use linearity to determine a system's response to an input signal that is different from a given example's. -Zachary Curosh


The answer is very clear to me. Very well explanation to me. -Sangwan Han

Alumni Liaison

Ph.D. 2007, working on developing cool imaging technologies for digital cameras, camera phones, and video surveillance cameras.

Buyue Zhang