How do I save my answers with 2 for loops.

Question

Dave L 2016-2-11

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评论： Dave L 2016-2-11

So I have a transfer function x= 1/(w+4m). m goes from 1 to 5 and w goes from 1 to 3. The first for loop is m and w is the loop inside. So basically I need to save my answer as the following array

x =[m1w1 m1w2 m1w3 m2w1 m2w2 m2w3 m3w1 m3w2 m3w3 m4......till m5w3]

the answer would be

x =[1/5 1/6 1/7 1/9 1/10 1/11.........1/23]

right now I have

 y = zeros(1,15);
 for m = 1:5
    for w= 1:3
    x = 1/((w+m*4));
    y(m) = x;
    end
 end

I know it's wrong.. how do i fix it? Thank you.

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Answer 1

Stephen23 2016-2-11

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编辑：Stephen23 2016-2-11

在 MATLAB Online 中打开

Using bsxfun is faster and neater than using loops:

>> X = bsxfun(@(m,w)1./(w+4*m), 1:5, (1:3).');
>> X(:)
ans =
          0.2
16667
14286
11111
          0.1
090909
076923
071429
066667
058824
055556
052632
047619
045455
043478