Research randi, fix, round, ceil, floor functions. • Can you generate a random integer number without using randi?

Help me please

[Medu Segar]

 Research randi, fix, round, ceil, floor functions.
• Can you generate a random integer number without using randi?
• If the answer is yes, how?
• If the answer is no, why not?
In this

Answer 1

[Ameer Hamza]

All the answers can be found on following links

https://www.mathworks.com/help/matlab/ref/randi.html

https://www.mathworks.com/help/matlab/ref/fix.html

https://www.mathworks.com/help/matlab/ref/round.html

https://www.mathworks.com/help/matlab/ref/ceil.html

https://www.mathworks.com/help/matlab/ref/floor.html

Answer 2

[Walter Roberson]

Yes, you can. You can use rand() and typecast the results to uint64 and that will be an integer.

The question only asks about creating an integer, and does not impose any restrictions about range of the integers or that the integers produced must be sampled consecutively or that the sampling must follow any particular distribution or that the sampling must be unbiased.

Caution: I know what the expected answer is to the question, but the techniques that they are hinting at are not unbiased! If you look carefully at the range of floating-point numbers that rand can produce, you will find that it cannot produce the minimum or maximum number in the nominal range, and that introduces a bias to the numbers.

[Walter Roberson]

With careful programming the bias can be overcome if the range of numbers is 2 3 5 53 157 1613 2731 8191 or any product of those used no more than once each.