--- In [email protected], Joël van Noort
<[EMAIL PROTECTED]> wrote:
>
> Hello guys,
>
> I just uploaded a nice tutorial about commutators to my website...
Hi Joel,
very nice, I like it a lot. But of course I have to write some
suggestions/comments anyway :-)
- To show the commutator structure and the "little overlapping" rule I
like to compare "shoe off, sock off, shoe on, sock on" with "shoe off
glove off, shoe on, glove on".
- On the cube the "little overlapping" becomes nicely visible if you
take the T-perm as P, and for Q first use D, then L, then U. Shows how
larger overlap results in larger effects.
- Example 1: (B L2 B' R B L2 B' R') has the nice alternative solution
(R' U L' U' R U L U').
- Can you give unique numbers to all examples to make referring to
them easier?
- What's (P = R'UL' and Q = U') supposed to do?
- For the 4x4 applets, I'm sure there's a way to turn the algorithm
display off, but I don't remember how right now.
- (P = l r' u2 l' r') should be (P = l r' u2 l' r)
- Why always only outer slice turns for Q, never inner slice turns?
For example (U R' U') M' (U R U') M. Also results in a nice alg with
setup move R: (R U R' U' M' U R U' r'). Inner slice turns for Q is
also very helpful for 4x4.
- Gosh did I have a sunburn.
Cheers!
Stefan
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