Index in position 2 exceeds array bounds

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Fernanda Vanessa Almendarez Juarez
回答： Hyeokjin Jho 2020-2-18
I have a problem with this, I dont know whats wrong
n=4;
r= 0.012;
pos = [0 0; 0 0.5; 0.5 0.5; 0.5 0]
a = zeros(1,n)
i=1
while( i<=n)
for(j=1:1:n-1)
for(k=1:1:n-1)
x = pos(k+1,1)-pos(1,j) %%------> I have the problem here
It says "Index in position 2 exceeds array bounds"

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回答（2 个）

KSSV
KSSV 2020-2-18
You size of pos is 4x2....you are trying to accessing third coulmn from pos....where as it has only two columns..so obviously you will end up with error.
Hyeokjin Jho
Hyeokjin Jho 2020-2-18
Since n = 4, for(j=1:1:n-1) will make j from 1 to 3.
However pos is 4x2 matrix. When j is 3, pos(1,j) refers outside of the matrix boundary.

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