#ATTENDANCE QUIZ FOR LECTURE 3 of Dr. Z.'s Math454(02) Rutgers University

# Please Edit this .txt page with Answers

#Email  ShaloshBEkhad@gmail.com 
#Subject: p3
#with an attachment called
#p3FirstLast.txt
#(e.g. p3DoronZeilberger.txt)

#Right after finishing watching the lecture but no later than Sept. 14, 2020, 8:00pm


Q1. THE FIRST ATTENDANCE QUESTION WAS:
#What is a derangement?


A1. MY ANSWER TO THE FIRST ATTENDANCE QUESTION IS:

#A derangement is a permutation of a given set where no element is in its original place.

#So if the set is {1,2,3,4} then a possible derangement is {2,1,4,3} and {1,3,4,2} is not a derangement because the element '1' was in its original place.

Q2. THE  SECOND ATTENDANCE QUESTION WAS:
# verify that WtoS followed by StoW applied to the set of subsets.
#Give two examples of WtoS and StoW.

A2. MY ANSWER TO THE  SECOND ATTENDANCE QUESTION IS:

# WtoS([0,0,0,1]); -> {4}
# WtoS([0,0,1,1]); -> {3,4}

# StoW({3,4},4); -> [0,0,1,1]
# StoW({4},4); -> [0,0,0,1]
Q3. THE  THIRD ATTENDANCE QUESTION WAS:


A3. MY ANSWER TO THE  THIRD ATTENDANCE QUESTION IS: