I have a question about for loop

1 view (last 30 days)
Sudharsan Srinivasan
Sudharsan Srinivasan on 17 Jul 2017
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 ?

Answers (1)

Jan
Jan on 17 Jul 2017
Edited: Jan on 17 Jul 2017
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.
  1 Comment
Sudharsan Srinivasan
Sudharsan Srinivasan on 17 Jul 2017
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.

Sign in to comment.

Categories

Find more on Loops and Conditional Statements in Help Center and File Exchange

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!