How can I solve this problem using for loop?

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Manav Divekar 2021-11-10

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https://ww2.mathworks.cn/matlabcentral/answers/1583874-how-can-i-solve-this-problem-using-for-loop

回答： Emmanuel 2024-1-23

for the given vector [2 2 5 8], without using sum() and diff() how can i perform 2*2 + 2*5 + 5*8 = 54. Using for loop. here the consicutive number are multiplied and then addition is performed.

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回答（2 个）

Matt J 2021-11-11

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https://ww2.mathworks.cn/matlabcentral/answers/1583874-how-can-i-solve-this-problem-using-for-loop#answer_828829

在 MATLAB Online 中打开

v=[2 2 5 8];
for i=1
 result=v(1:end-1)*v(2:end).'    
end
result = 54

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Manav Divekar 2021-11-11

this is giving a matrix, not the summation.

Matt J 2021-11-11

编辑：Matt J 2021-11-11

I demonstrated to you in my original answer that it does give the summation. This is assuming the vector is a row vector, which it was in your original post.

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