Using for loop to evaluate polynomial for different values

Question

Neha W 2016-9-24

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/304351-using-for-loop-to-evaluate-polynomial-for-different-values

评论： Image Analyst 2016-9-25

 % Here N = 10 ; poly =[5 8 0]
for i = 1:N-1;
    A = sum(poly);
    B = mod(A,N); 
end
i = i + 1;

But the end result shows the value for i = 1 (i.e. A=13, B = 3) only. I need to display A & B for i = 1 to 9

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Answer 1

Image Analyst 2016-9-24

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/304351-using-for-loop-to-evaluate-polynomial-for-different-values#answer_235945

在 MATLAB Online 中打开

Try this:

N = 10 ; 
poly =[5 8 0];
for k = 1:N-1;
    A = sum(poly);
    B = mod(A,N); 
  fprintf('At iteration %d, A = %d, and B = %d\n', k, A, B);
end

You'll see

At iteration 1, A = 13, and B = 3
At iteration 2, A = 13, and B = 3
At iteration 3, A = 13, and B = 3
At iteration 4, A = 13, and B = 3
At iteration 5, A = 13, and B = 3
At iteration 6, A = 13, and B = 3
At iteration 7, A = 13, and B = 3
At iteration 8, A = 13, and B = 3
At iteration 9, A = 13, and B = 3

It displays A and B at every one of the 9 iterations, and you can see that they're all the same since A and B never are assigned anything that depends on the iteration number at all.

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Neha W 2016-9-25

Sir, since i = 1: 10

if want A = [0 13 36...477] (% evaluate poly for every iteration till N-1) and the store the mod values in B = [0 3...7] array, What could be the procedure?