[Tutor] confusion about cloning (graphics)

[Kent Johnson]

On Sun, Feb 1, 2009 at 3:34 AM, David <ldl08 at gmx.net> wrote:

> This behaviour stuns me, because I was always following the belief that when
> variable2 refers to another variable1, the value of variable1 would NOT
> change, even as I operate on variable2

> So here is my question: what have I failed to grasp? Are those different
> issues? If so, why?

My explanation is here:
http://personalpages.tds.net/~kent37/kk/00012.html

Harrington explains immediately after the program you cite; did you
see his explanation?

Kent