how to get the sum of the difference of the output from a multiplication and a data set

Question

segun 2015-11-28

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/257966-how-to-get-the-sum-of-the-difference-of-the-output-from-a-multiplication-and-a-data-set

编辑： dpb 2015-11-28

Please i need hint on how to manipulate the output from a for loop do summation of differences between it and a data set. An example is shown below. I tried it but it only computed for the first for loop neglecting the other data set.

for f = [1 4  8  10 14];
  b=2;
  c=1;
  d=1;
  n=4;
  N= f*b*c*d;
  M=[4.5  10.5   20.5   25.6  30.8];
  Y = (M-N);
  A = sum(Y);
end
disp(A)

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

dpb 2015-11-28

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/257966-how-to-get-the-sum-of-the-difference-of-the-output-from-a-multiplication-and-a-data-set#answer_201455

编辑：dpb 2015-11-28

在 MATLAB Online 中打开

OK, with the revised objective, no loop needed...

b=2;
c=1;
d=1;
n=4;
M=[4.5 10.5 20.5 25.6 30.8];
f=[1    4    8   10   14];
N= f*b*c*d;
A = sum(M-N);
disp(A)

2 个评论
显示无隐藏无

segun 2015-11-28

I tried your the code it gave me five answers instead of a single answer which should be the total sum of "M-N" as a single figure .Please what should i do ?