try loading complex double-float data into lisp so that i can call a fortran svd routine
i loaded all the ics images of one 2d mirror scan into lisp
i marked the point where i expect the bug in pgm-write (append of raw data)
and i think i get an idea of how i could implement sub-array accesses similar to matlab
subarray access is getting better
i can't remember how to create recursive loops with macros.
i will need this to fill data into the new array in the subarray function