"Bill DeWitt" <bde### [at] cflrrcom> wrote in message
news:3c9b45fe$1@news.povray.org...
>   #while(ThisLen <= WallLen & ThisHi <= WallHi)
>
>     Doesn't the above fail as soon as one of the conditions are met?
> Shouldn't they be in two statements, one repeating until the other fails?
>

Ah! I think that's it - it should be an "or" rather than an "and". Ta.

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