Inverting A Permutation

To invert a permutation, the sequential twists are performed backwards. An example of this is as follows:

From table Inverse
R²U Fs R²Bs U R² R²U' Bs' R²Fs' U' R²

To further illustrate how inverting works, take for example the sequence R B U L F D. The inverse of this sequence is D' F' L' U' B' R'. As you can see, the exact opposite is performed. It is just like recording yourself performing the pattern on a video tape and then playing it backwards for the inversion.

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