How do i make a matrix like this

I'm trying to make a matrix with two columns. The second column is from .5 to 20 with .1 increments and i want the first column to have .5 for as many rows the second column gives, but I also want this to happen for .6, .7, .8, .9, 1, 1.1,... and all the way up to 20 with .1 increments in the same matrix.

i put a picture of a small portion for what i'm talking about.

Answer 1

[Walter Roberson]

[C1, C2] = ndgrid(0.5:.1:20);
matrix = [C1(:), C2(:)];

[Oskore Mune]

lmao wow that's amazing thanks!

[KALYAN ACHARJYA]

Are you getting the result as per your requirement? The answer is interesting, that's why I have checked it, I got the result as follows-

[Walter Roberson]

You can replace ndgrid() with meshgrid() to get the values in the other order.