now does have floating point.
solid implementation of Lisp, and the humble task of calculating
turned out to be more open-ended than one might have expected.
-Emacs Lisp doesn't have built-in floating point math, so it had to be
+Emacs Lisp didn't have built-in floating point math (now it does), so
+this had to be
simulated in software. In fact, Emacs integers will only comfortably
fit six decimal digits or so---not enough for a decent calculator. So
I had to write my own high-precision integer code as well, and once I had