Design Process and Learning

Reason why the pl. or plt. are the way they are:

just a way to shorten the pylab and matplotlib.pyplot into a more convinient code.
The pl. and plt. is just a abbreviation, but you can change the abbreviation to anything (eg: honami, tech, quest) and it will work. AS LONG AS you stay consistent with the code that you first chose.
Once I type the chosen code, it will tell python to go to the function list and find the function that I've coded.

Or