RF - Zine #6
[1/3] from: rebol::optushome::com::au at: 8-May-2002 7:04
Hi REBOLs,
Plenty of reading in Zine #6 http://www.rebolforces.com/zine/rzine-1-06.html
Thanks to this month's contributors, Cyphre, Chris RG, Robert M, Gregg
Irwin.
Cheers,
Allen K
[2/3] from: brett:codeconscious at: 8-May-2002 9:56
I really enjoyed reading the Zine. Particularly loved the animated draw
tutorials.
Cyphre's point about View being larger than VID and thus the need to show
off View more was well put.
Great work contributors!
Brett.
[3/3] from: anton:lexicon at: 8-May-2002 12:42
Yes it's good. I feel bad I haven't contributed anything.
I noticed in Cyphre's draw tutorial this line of code:
r: square-root ((power p/x 2) + (power p/y 2))
In tests I conducted recently I discovered that
using power is only faster for powers >= 5.
Better, then, to write simply:
r: square-root ((p/x * p/x) + (p/y * p/y))
I remember this was discussed a long time ago, by more
ancient rebols.
This might also save a few cycles. Have to test it
though:
p2: p * p
r: square-root (p2/x + p2/y)
Anton.