(calc-wrapper, calc-slow-wrapper)

(calc-wrapper, calc-slow-wrapper)
(math-showing-full-precision, math-with-extra-prec, math-working)
(calc-with-default-simplification)
(calc-with-trail-buffer): Use backtick.
(Math-zerop, Math-integer-negp, Math-integer-posp, Math-negp)
(Math-looks-negp, Math-posp, Math-integerp, Math-natnump)
(Math-ratp, Math-realp, Math-anglep, Math-numberp, Math-scalarp)
(Math-vectorp, Math-messy-integerp, Math-objectp, Math-objvecp)
(Math-integer-neg, Math-equal, Math-lessp, Math-primp)
(Math-num-integerp, Math-bignum-test, Math-equal-int)
(Math-natnum-lessp, math-format-radix-digit): Change to `defsubst'.
(calc-record-compilation-date-macro): Deleted.  Callers updated.
(math-format-radix-digit): Move to calc-bin.el.

Change all toplevel `setq' forms to `defvar' forms, and move them
before their first use.  Use `when', `unless'.  Remove trailing
periods from error forms.  Add description and headers suggested by
Emacs Lisp coding conventions.