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There’s also a circle with a diagonal line through it (on phone, no Unicode keyboard) which consistently with the above axes of symmetry transposes a matrix; do
by beagle3 5y ago
There’s also a circle with a diagonal line through it (on phone, no Unicode keyboard) which consistently with the above axes of symmetry transposes a matrix; don’t remember if it transposes first two or last two axes on higher rank arrays.
- moonchild 5y agoIt reverses the order of the axes. There is also a dyadic variant, which provides a new order for the axes. Duplicating an axis is no problem; but there is a danger of leaving out an axis. So in j, instead, the specified axes are moved to the rear.