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Getting an "index out of bounds error" in my Matlab program. Help.

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Virajan Verma
Virajan Verma 2018-10-16
关闭： MATLAB Answer Bot 2021-8-20
ex(1)=lx/J %%first i term in ex matrix
ex(2)=mx/J %%second j term in ex matrix
ex(3)=nx/J %%third k term in ex matrix
for i=1:8
for j=1:27
N_matrix(i,j)=0;
end
end
for i=1:9
N_matrix(1,i)=N(rem(i-1,3)+1)*ex(i)/3;(ERROR HERE)
end
Attempted to access ex(4); index out of bounds because numel(ex)=3.
Error in practisee2 (line 227)
N_matrix(1,i)=N(rem(i-1,3)+1)*ex(i)/3
  1 个评论
KSSV
KSSV 2018-10-16
@ Virajan Verma It is not fair to ask every step a question in forum. I suggest/ advice you to read basic tutorials of MATLAB which is very easy

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回答（1 个）

KSSV
KSSV 2018-10-16
YOur ex has only three elements..you are trying to access i = 4. So error.
  1 个评论
KSSV
KSSV 2018-10-16
Replace these lines:
for i=1:8
for j=1:27
N_matrix(i,j)=0;
end
end
by simply:
N_matrix = zeros(8,27) ;

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