# make different numbers with the same digits

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Jens Petit-jean on 19 Oct 2020
Commented: Jens Petit-jean on 19 Oct 2020
I have to ask the user for a positive integer ( input=('give a positive integer') and then ask him through a menu if he wants to make a bigger or smaller number with the same digits so Matlab will calculates the requested number.
Ameer Hamza on 19 Oct 2020
What if use input 999? Also, if you just want a bigger number, you can add 1.
Jens Petit-jean on 19 Oct 2020
yeah I know I think 999 just keeps the samen. No I can't just add 1 I need to make the number bigger or smaller just by changing the position of the digits.

Vladimir Sovkov on 19 Oct 2020
x=1342;
y=str2num(sort(num2str(x),'ascend')); % smaller
z=str2num(sort(num2str(x),'descend')); % bigger
Jens Petit-jean on 19 Oct 2020
thank you!

KSSV on 19 Oct 2020
str = '215' ;
num = str2num(perms(str)) ;
greater = num(num>str2num(str))
lesser = num(num<str2num(str))
Jens Petit-jean on 19 Oct 2020
thank you!