Thank you for the podcast. I listened with pleasure. I worked with APL forty years ago, and with J for about twenty years. I love arrays, but I love ordinal fractions even more. Any array can be modelled by ordinal fractions, but not the other way around. So ordinal fractions are more general than arrays.
Thanks, Bo. https://www.academia.edu/10031088/ORDINAL_FRACTIONS_the_algebra_of_data ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
