Here is a script that asks for 3 user-provided numbers, and then prints the 3 numbers in order from smallest to largest. 

% This script gets 3 input numbers from the user and
%  displays the numbers in order from smallest to largest

num1 = input('Enter number ');
num2 = input('Enter number ');
num3 = input('Enter number ');

% Put numbers in a vector
vec = [num1 num2 num3];
% Find the biggest
biggest = max(vec);
% Find the smallest
smallest = min(vec);
% Find the middle
medium = vec(find(vec~=biggest & vec~=smallest));

sorted = [smallest medium biggest];

disp(sorted);
Rewrite this as a function called minisort that takes 3 numbers and returns the sorted vector. For example, 
>> eddie=minisort(10, 5, 25)
eddie =
     5    10    25