MATLAB: How can i create matrix for all possible combination

Question

phi= [0.05, 0.1, 0.2, 0.5]
delta= [0.05, 0.1, 0.25, 0.5, 1.0, 2.0, 3.0]

I do need to create 4×7 =28 different combination. so final matrix should be

[0.05 0.05 ;0.05 0.1 ;0.05 0.25;.....]

something like this how can i create?

Answer 1

Use ndgrid:

>> [deltaM,phiM] = ndgrid(delta,phi);
>> [phiM(:),deltaM(:)]
ans =
         0.05         0.05
         0.05          0.1
         0.05         0.25
         0.05          0.5
         0.05            1
         0.05            2
         0.05            3
          0.1         0.05
          0.1          0.1
          0.1         0.25
          0.1          0.5
          0.1            1
          0.1            2
          0.1            3
          0.2         0.05
          0.2          0.1
          0.2         0.25
          0.2          0.5
          0.2            1
          0.2            2
          0.2            3
          0.5         0.05
          0.5          0.1
          0.5         0.25
          0.5          0.5
          0.5            1
          0.5            2
          0.5            3