Radix Modes
-----------

Calc normally displays numbers in decimal ("base-10" or "radix-10")
notation.  Calc can actually display in any radix from two (binary) to
36.  When the radix is above 10, the letters `A' to `Z' are used as
digits.  When entering such a number, letter keys are interpreted as
potential digits rather than terminating numeric entry mode.

The key sequences `d 2', `d 8', `d 6', and `d 0' select binary, octal,
hexadecimal, and decimal as the current display radix, respectively.
Numbers can always be entered in any radix, though the current radix
is used as a default if you press `#' without any initial digits.  A
number entered without a `#' is *always* interpreted as decimal.

To set the radix generally, use `d r' (`calc-radix') and enter an
integer from 2 to 36.  You can specify the radix as a numeric prefix
argument; otherwise you will be prompted for it.

Integers normally are displayed with however many digits are necessary
to represent the integer and no more.  The `d z'
(`calc-leading-zeros') command causes integers to be padded out with
leading zeros according to the current binary word size.  (*Note
Binary Functions::, for a discussion of word size.)  If the absolute
value of the word size is `w', all integers are displayed with at
least enough digits to represent `(2^w)-1' in the current radix.
(Larger integers will still be displayed in their entirety.)