Yabin is yet another big-number calculation package.
In fact, this is only a wrapper of `calc', but it's a little bit useful
than using directly.

Difference of math-*/calcFunc-* functions:

 * Parameters are automatically normalized.  Floating, string number
   and also `calc' package's internal form can be used directly.
 * A result is automatically formatted to string number.
 * Some operation's behavior is changed as same as Emacs native one,
   such as `yabin-div' and `yabin-reminder.'
 * Infinite and NaN automatically converted Emacs native representation.
 * Only support integer and floating number.  Complex numbers are converted
   into NaN.  For vectors, operation isn't defined.  Fractions are supported
   only as input parameter.

; Installed functions:

 All public functions have alias name that prefix replaced like
 `yabin-OPERATION' -> `!OPERATION', and some functions that exists
 equivalent operation on native have more short alias name.

 Public functions list is below (prefix `yabin-' is omitted.)

 * Basic arithmetic
   add (!+), add1 (!1+), sub (yabin-minus, !-), sub1 (!1-), -multi (!*),
   div (!/), reminder (!%), mod, expt (power, !^), abs, max, min

 * Application function
   sin, cos, tan, asin, acos, atan, log, log10, exp, sqrt, nth-root,
   fact, gcd, lcm

 * Random
   random, shuffle

 * Conversion
   ceiling, floor, round, truncate, float, ffloor, fceiling, fround, radix

 * Bitwise operation
   ash, rash, lsh, rsh, rot, logand, logior, logxor, logdiff, lognot

 * Binary oriented conversion
   limit-nbit, limit-nbyte, overflowp, clip, unsigned, signed, pack,
   number-to-unibyte-string, unpack (unibyte-string-to-number)

 * Predicate
   numberp, natnump, integerp, oddp, evenp, posp, negp, zerop, floatp,
   isnan, isinf

 * Comparator
   equal (!=), not-equal (!/=), less-than (!<), less-than-equal (!<=),
   greater-than (!>), greater-than-equal (!>=)

 * Formatting
   format, format-spec