It is not 100% clear to me what you want to do, however you can use elseif for multiple statements:
a=5;
if a==4
elseif a==5
disp('This gets executed')
else
end
Instead of having a lot of ifelse statements it might be a better solution to use switch/case
a=5;
switch a
case 1
case 2
case 5
disp('This gets executed')
case 408954624
otherwise
end
Depending on what you are trying to do you might want to index your variables. This might help you later.
%coa for tp 100 to 1500
coa(1)=123456;
coa(2)=234567;
coa(3)=465791;
%...
tp=0:100:200;
for i=1:numel(tp)
disp(coa(i))
end
