(INFO
". Tiling an array means splitting one axis into fast and slow parts, "
"and then interleaving those parts into other (existing) axes by doing "
"two axis merges, which combine an existing axis with part of the split "
"axis. This reduces the dimension by one. The three axis arguments all "
"identify axes in the input array as is. This provides, for example, "
"a simple way of viewing the 128 slices along the slow axis of a 3-D volume "
"as a 16x8 tiled array of 2-D slices, as with \"-a 2 0 1 -s 16 8\".")