Oh and an instance that occurred in class at Uni this morning - Tutor explained why the condition for convolution needed to hold, and summarised by stating "Now, If you could actually build this so-called black box which could respond to the impulse before it occurred, You would have made a time machine and you can go claim your Nobel prize". To which I exclaimed "You mean the Blue box, right?"...
Sounds like one of my lecturers doing convolution.
"OK, before we start. I have no idea how to do convolution, but here I am teaching it to you. Because we are engineers, we cheat and do it graphically. Here's how...."
He is by no means a dumb lecturer, quite the contrary, he just tells it like it is in layman's terms, and make sure everyone understands it.
Same person who, whilst in a lecturer yesterday, was "And here is where the lecture notes are
fundamentally wrong. They are ok at the start, and ok at the finish, but in the middle they are WRONG! And dont bother with the textbook, as it is WRONG as well.
This was while explaining electrical and magnetic flux effects of power cables (both co-axial and normal) and how they induce voltages and subsequent currents, for those of you playing at home......
Its not the only time he has made points like this. He is an excellent lecturer, and is not afraid to tell it like it is, probably why i enjoy his lecturing style and personality. So i guess his lectures, or moreso his style is a LTIL
Ah the good old impulse function. I have literally just finished writing some notes on it for one of my subjects. God it can be a pain that function, considering it doesn't even practically exist!