Index exceeds number of array elements (1)??

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Cheng On ching il 11 Dic 2019
Risposto: Nicolas B. il 11 Dic 2019
function We = ProgramWe(d,pa,Vi,st)
st=0.073; % Surface tension (N/m)
pa=1.225; %The density of air(kg/m³)
%diameter of raindrops
We= (pa*Vi^d)/st;
end
The recall function shown above.
function Cdi = ProgramCd(We,a,b,c,Vi,dt,ti,tf)
a=0.013;
b=2.28;
c=2.12;
ti=0;
tf=12;
dt=2;
d=2;
t=ti;
pa=1.225;
st=0.073;
Vi=0;
V(1)=Vi;
i=2;
while(1)
if t+dt>tf, break,end
We = ProgramWe(d,pa,V(i-1),st);
Cd = 1+a*(We+b)^c -(a*b^c);
t=t+dt;
i=i+1;
end
Cdi=Cd;
The error of Index exceeds the number of array elements (1) appeared in ProgramCd (line 17)
We = ProgramWe(d,pa,V(i-1),st);
Any ideas? Thanks
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Risposte (1)

Nicolas B. il 11 Dic 2019
Base on your code, I see that at line 13 of ProgramCd, you create V as a scalar because you even ensure that Vi must be of size 1.
If you want to have a vector V of e.g. 10, than:
V = zeros(1, 10); % or NaN(1, 10), ones(1, 10) depends with what you want to init V
V(1) = Vi; % initialize V(1) to Vi scalar value
Sorry to not be able to help more, but I don't know what you expect to have into V.
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