obtaining values major than 10e-7

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Salvatore Mazzarino 2012-9-15

I use rand function to generate values

x = rand;

after that I compared generated values to

10e-7
if x > 10e-7
  do something
end

unfortunately rand generates values always bigger 10e-7. How can I generate values that are less than 10e-7 using rand function?

Jan 2012-9-15

编辑：Jan 2012-9-15

Do you mean 10e-7, which is 1e-6? The reply of RAND is not always greater than 1e6, but the chance to get a smaller value is 1 to 1e6. Try:

x = rand(1,1e7);
sum(x < 1e-6)

Azzi Abdelmalek 2012-9-15

x = rand*10e-7

Azzi Abdelmalek 2012-9-15

编辑：Azzi Abdelmalek 2012-9-15

x = 2*rand*10e-7

%you will have randomly > or <

Salvatore Mazzarino 2012-9-15

yes...now it work...thanks so much Azzi

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