How to generate a matrix of random decimal values from -1 to 1?
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I want to generate a 8x10 matrix full of random decimal values from -1 to 1, each with EXACTLY 6 decimal places (i.e 0.523483, -0.932401, etc.).
I know that this code generates values with 7 decimal places (not sure how to get it to 6). But, I don't know how to automatically generate a matrix full of values like these (without using a for loop). Any ideas? thanks!
format long
disp(single(rand(3)))
1 Comment
Rik
on 27 Jul 2021
Note that single doesn't have normal decimal places, as it is a floating point number. They take this shape:
(-1)^sign*2^(exponent-127)x1.fraction
%double has -1023 instead of -127
What you want is to round, which might affect the distribution of your values in subbtle and unintuitive ways.
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