I have a question about for loop

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Sudharsan Srinivasan
评论： Sudharsan Srinivasan 2017-7-17
Lets say a = [1,2,3....35] and b = [1,2,3...35]. The size of both the vectors are same i.e. 1 by 35. I have another matrix say R = [1 2 ; 3 4] whose size is 2 by 2. I wanted to do matrix multiplication as follows, c = R * [a(i);b(j)], where i and j are the total length of the vectors a and b respectively. I wanted to print the value of c (whose size is 1 by 2) for example c(1) = R * (a(1);b(1)) and c(2) = R * (a(2);b(2)) etc., till c(35). Each time i get the value of c, I have to compute x and y as follows,
[x;y] = [e;f] + c. Here e and f is again a 1 by 2 vector.
Finally I should have a 1 by 35 vector for x and y each.
How can I code this ?

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回答（1 个）

Jan
Jan 2017-7-17
编辑：Jan 2017-7-17
What about:
xy = [e;f] + R * [a;b] % >= Matlab R2016b
? With older versions:
xy = bsxfun(@plus, [e;f], R * [a;b])
Now x is the first row, y the second one.
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Sudharsan Srinivasan
Sudharsan Srinivasan 2017-7-17
Hello Mr. Jan Simon,
Thank you for your answer. I in fact did the same thing what you have mentioned. I was wondering if I can print x and y separately instead of defining a single variable xy.
Thanks a million for your time.
Sudharsan.

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