[Tutor] What's the error (program)

[Bob Gailer]

Earlier I wrote:
>I set up a very small program with one ball and a loop to change velocity 
>and position.
>Position changes; velocity does not. Any ideas?:

At 11:25 PM 11/6/2002 +0100, Emmanuel Ruellan wrote:
>Fine. But you forgot to modify the ball's position according to its 
>velocity.

I gather from this comment that velocity is not a property meaningful to 
visual objects.

I have struggled with "Reference manual: introduction, and all the details 
about using Visual". Since it lacks an index and glossary it is impossible 
to look things up unless one already knows where to look.

Bob Gailer
170 Forsythe Rd
Nederland CO 80466
303-442-2625