The distance between two points (u,v) and (x, y) in the plane is sqrt((u - x)2 + (v - y)2). Write a definition of function distance(u, v, x, y) that produces the distance between points (u,v) and (x,y).

 

    [Language: Cinnameg  Kind: function definition*]

(*You can define more than one function if you put a semicolon between definitions (but not between cases of one definition). Be sure to define a function before you use it.)