Why should we write x(i,1)=cos(theta(1,i) in this format while using the for loop?

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S Priya
S Priya 2021-8-17
评论： S Priya 2021-8-17
I have a doubt regarding this way of represention.
for i=1:n+1
x(i,1)=R*cos(Theta_n(1,i)
Why cant we represent it as-
x(i)=R*cos(Theta_n(i))

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KSSV
KSSV 2021-8-17
编辑：KSSV 2021-8-17
x = zeros(n+1,1) ;
for i=1:n+1
x(i)=R*cos(Theta_n(i)
You can very much write like you shown. But keep in mind that the variables should be vectors.
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KSSV
KSSV 2021-8-17
Ran in:
You can simply try and check the output your self.
When you try:
n = 3 ;
zeros(n+1)
ans = 4×4
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
You will get a matrix.
If you want to get a vector, you should specify:
n = 3 ;
zeros(n+1,1)
ans = 4×1
0 0 0 0
zeros(1,n+1)
ans = 1×4
0 0 0 0

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