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Error: Index exceeds the number of array elements

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Spencer
Spencer 2023-11-15
评论： Walter Roberson 2023-11-15
This is the error:
Index exceeds the number of array elements. Index must not
exceed 1.
Note: position1 and velocity1 are both 41x1 double
Error in Lab6Q5 (line 39)
position1(i) ) * (momentum_def(i+1) + momentum_def(i) ) /2;
position =xlsread(filename,'No Cylinder','D2:D42');
position1 =normalize(position);
velocity =xlsread(filename,'No Cylinder','E2:E42');
velocity1 =normalize(velocity);
total_momentum_def = 0;
momentum_def = 0;
for i = 1: size(position1,1)-1
total_momentum_def = total_momentum_def + ( position1(i+1) - ...
position1(i) ) * (momentum_def(i+1) + momentum_def(i) ) /2;
end

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回答（1 个）

madhan ravi
madhan ravi 2023-11-15
momentum_def was defined as a scalar before the loop but you are trying to access the second element in the first interation of the loop momentum_def(i + 1)
  1 个评论
Walter Roberson
Walter Roberson 2023-11-15
And since it is a scalar the next iteration momentum_def(2) would certainly not be defined, since nothing in the code is growing momentum_def

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