#ATTENDANCE QUIZ FOR LECTURE 3 of Dr. Z.'s Math336 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 attending the lecture, but no later than 4:00pm that day

Name:

LIST ALL THE ATTENDANCE QUESTIONS FOLLOWED (IF YOU KNOW THEM) BY THE ANSWERS

1) Is the cell model named after Sir Ronald Ross or is it named for something else? 

The SIR epidemiological model developed by Ronald Ross stands for Susceptible, Infected, and Recovered.  

2) a1:= the fifth digit RUID
   a2:= the first digit
   a3:= the second digit

   a1*y''(t)-a2*y'(t)+a3*y(t)=0, y(0)=2, y'(0)=1
 
   y''(t)-2y'(t)+y(t), y(0)=2, y'(0)=1
   
   dsolve({D(D(y))(t) - 2*D(y)(t) + y(t), y(0) = 2, D(y)(0) = 1}, y(t))

   y(t) = 2e^t - te^t

   *changed initial conditions to get an answer, otherwise it was y(t) = 0