Changes between Initial Version and Version 1 of Ticket #18987, comment 44
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 08/11/15 11:54:06 (5 years ago)
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Ticket #18987, comment 44
initial v1 6 6 > In `ncube_isometry_group_modpi` why are you building `MatrixGroup`? 7 7 8 Maybe for nothing. Let me check. 8 Because otherwise, this 9 10 {{{ 11 G = ncube_isometry_group(n, orientation_preserving) 12 H = [h for h in G if all(i==j for (i,j) in h.nonzero_positions())] 13 left_cosets = set(tuple(sorted(h*g for h in H)) for g in G) 14 }}} 15 16 throws a {{{TypeError: mutable matrices are unhashable}}} and I find it more fun to read like this instead of the `.set_immutable()` on every matrices.