Newmark's Method for Linear Systems

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nur yusof
nur yusof on 25 Feb 2016
Hi all,
Hope someone will explain to me about this file exchange's code(Dr.Siva-Newmark's Method for Linear Systems-http://www.mathworks.com/matlabcentral/fileexchange/32143-newmark-s-method-for-linear-systems/content/Newmark's%20Method%20for%20Linear%20systems/NewmarkMethod.m). The question are:-
1)Why n=length (M).n is for?I am not really expert in loop or cycle coding?
% Time step
ti = 0. ;
tf = 4. ;
dt = 0.1 ;
t = ti:dt:tf ;
nt = fix((tf-ti)/dt) ;
n = length(M) ;
depl = zeros(n,nt) ;
vel = zeros(n,nt) ;
accl = zeros(n,nt) ;
U = zeros(sdof,nt) ;
2)What is the different between depl-modal displacement's and U-system's displacement?

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