Help With Nested IF Statements!!!

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Omar
Omar on 23 Mar 2020
Commented: Omar on 24 Mar 2020
I would really appreciate if someone can help me why I am not getting the graph in the picture using the following code:
clear all;
clc;
close all;
Ss = 0.263;
S1 = 0.103;
Fa = 0.8;
Fv = 0.8;
TL = 10;
Sms = Fa*Ss;
Sm1 = Fv*S1;
Sds = (2/3)*Sms;
Sd1 = (2/3)*Sm1;
To = 0.2*(Sd1/Sds);
Ts = (Sd1/Sds);
T11 = [0:0.01:To]; T12 = T11(end)+0.0083; T1 = [T11,T12];
T21 = T1(end)+0.01:0.01:Ts; T22 = [T21(end)+0.0033]; T2 = [T21,T22];
T31 = T2(end)+0.01:0.01:TL; T32 = [T31(end)+0.0084]; T3 = [T31,T32];
T4 = T3(end)+0.01:0.01:12;
T = [T1,T2,T3,T4];
for j = 1:1:length(T)
Sa(1) = Sd1;
if T > 0 & T <= To
Sa(j) = Sds*(0.4+0.6*(T(j)/To));
elseif T > To & T <= Ts
Sa(j) = Sds;
elseif T > Ts & T <= TL
Sa(j) = Sd1/T(j);
else
Sa(j) = Sd1*TL/T(j)^2;
end
end

Accepted Answer

Fangjun Jiang
Fangjun Jiang on 23 Mar 2020
if T > 0 & T <= To
needs to be
if T(j) > 0 & T(j) <= To
  1 Comment
Omar
Omar on 24 Mar 2020
Thank you Jiang so much.

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