Discover MakerZone

MATLAB and Simulink resources for Arduino, LEGO, and Raspberry Pi

Learn more

Discover what MATLAB® can do for your career.

Opportunities for recent engineering grads.

Apply Today

To resolve issues starting MATLAB on Mac OS X 10.10 (Yosemite) visit: http://www.mathworks.com/matlabcentral/answers/159016

Decimal random number generator

Asked by sita on 25 Jan 2013

Hello,

I want to generate a random number generator 0 to 1 should include values with ten decimal points.As default i get only 4 decimals.

Thanking You,

Sita

1 Comment

Jan Simon on 28 Jan 2013

Where did all the comments go? Did you delete them? If so, why? Without them our answers looks a little bit unmotivated, not to say lunatic. Therefore removing important data from a thread is not wanted.

sita

Products

3 Answers

Answer by Sachin on 25 Jan 2013
Edited by Jan Simon on 25 Jan 2013
out = rand(1, 1);
decimal_out = floor(out * 100000000);
decimal_out = decimal_out\100000000;

0 Comments

Sachin
Answer by Jan Simon on 25 Jan 2013

What about using rand() directly, because it satisfies: at least 8 decimal digits already?

1 Comment

Jan Simon on 25 Jan 2013

The limitation to 4 digits appears in the command line only, see: help format.

format long g
disp(rand(2,2))

Although I assume your code is just an abbreviated example, I recommend not to use "min" and "max" as names of variables, because this shadows frequently used Matlab commands.

However, I still do not understand your question. What does "fixing the number of decimal points" mean? RAND does reply values like 0.00000000001 also, so what is the problem.

Jan Simon
Answer by Evgeny Pr on 25 Jan 2013
Edited by Evgeny Pr on 25 Jan 2013

Do you have the distribution law for pseudo-random numbers for your problem? You can use RAND function for generate uniformly distributed numbers and define its non-linear (or linear) transformation function:

numbers = rand(10);
transformedNumbers = transform_function(numbers);

0 Comments

Evgeny Pr

Contact us