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Create a matrix using rand function with a value range

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Ashfaq Ahmed
Ashfaq Ahmed 2021-10-28
评论： Steven Lord 2021-10-28
Hi all, how can I create a 50x50 matrix using Random (rand) function while the condition is all the values of the matrix will be in between 0 to 0.004?

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Stephen23
Stephen23 2021-10-28
0.004*rand(50,50)
  2 个评论
Ashfaq Ahmed
Ashfaq Ahmed 2021-10-28
编辑：Ashfaq Ahmed 2021-10-28
I am right now using this line: a = 0.004 + (0.004-0.000).*rand(50,50);
Steven Lord
Steven Lord 2021-10-28
Ran in:
That's almost correct. That's the syntax suggested in the "Random Numbers Within Specified Interval" example on the documentation page for the rand function but you're using a and b inconsistently.
You want to generate numbers with the lower limit a being 0 and the upper limit b being 0.004.
a = 0;
b = 0.004;
N = 10;
r = a + (b-a).*rand(N,1)
r = 10×1
0.0018 0.0005 0.0015 0.0001 0.0028 0.0025 0.0028 0.0026 0.0019 0.0024
checkInterval = all((a < r) & (r < b))
checkInterval = logical
1

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