I've just published draft #3 of SRFI 179.  It was submitted by Bradley J. Lucier, author of the SRFI.

https://srfi.schemers.org/srfi-179/

Here are Bradley's comments on the draft:

generic-arrays:

• Remove ##immutable-array-permute, ##mutable-array-permute, ##specialized-array-permute, which are no longer used.
• interval-rotate (new).
• Add ##rotation->permutation, use it in interval-rotate and in array-rotate.

test-arrays.scm:

• Add interval-rotate error and (minimal) result tests.
• Replace array-permute with much simpler array-rotate in separable transform and matrix multiply code.

srfi-179.scm:

• Document interval-rotate, and Add it to the list of routines added since SRFI 122.
• Use array-rotate instead of array-permute in separable transform and matrix multiplication examples.
• Note the sample matrix is a Hilbert matrix.
• Add 2020 as a copyright date.
• Add Draft #3 notice.
• Give the three rotations of a three-dimensional array as an example.

srfi-179.html: