(frob %long-float long-float))
;;; Convert a ratio to a float. We avoid any rounding error by doing an
-;;; integer division. Accuracy is important to preserve read/print
+;;; integer division. Accuracy is important to preserve print-read
;;; consistency, since this is ultimately how the reader reads a float. We
;;; scale the numerator by a power of two until the division results in the
;;; desired number of fraction bits, then do round-to-nearest.