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calc/help/base
Landon Curt Noll a31078bbec Remove all RCS @(#) lines and RCS strings
Some folks might think: “you still use RCS”?!?  And we will say,
hey, at least we switched from SCCS to RCS back in … I think it was
around 1994 ... at least we are keeping up! :-) :-) :-)

Logs say that SCCS version 18 became RCS version 19 on 1994 March 18.

RCS served us well.  But now it is time to move on.   And so we are
switching to git.

Calc releases produce a lot of file changes.  In the 125 releases
of calc since 1996, when I started managing calc releases, there
have been 15473 file mods!
2017-05-23 01:33:23 -07:00

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NAME
base - set default output base
SYNOPSIS
base([mode])
TYPES
mode real
return real
DESCRIPTION
The base function allows one to specify how numbers should be
printed. The base function provides a numeric shorthand to the
config("mode") interface. With no args, base() will return the
current mode. With 1 arg, base(val) will set the mode according to
the arg and return the previous mode.
The following convention is used to declare modes:
base equivalent
config("mode")'s
2 "binary" base 2 fractions
"bin"
8 "octal" base 8 fractions
"oct"
10 "real" base 10 floating point
"float"
"default"
-10 "integer" base 10 integers
"int"
16 "hexadecimal" base 16 fractions
"hex"
1/3 "fraction" base 10 fractions
"frac"
1e20 "scientific" base 10 scientific notation
"sci"
"exp"
For convenience, any non-integer value is assumed to mean base 10
fractions and any integer >= 2^64 is assumed to mean base 10
scientific notation.
These base() calls have the same meaning as config("mode", "fraction"):
base(1/3) base(0.1415) base(16/37)
These base() calls have the same meaning as config("mode", "scientific"):
base(1e20) base(2^64) base(2^8191-1)
However the base() function will only return one of the base values
listed in the table above.
EXAMPLE
; base()
10
; base(8)
012
; print 10
012
LIMITS
none
LINK LIBRARY
int math_setmode(int newmode)
NOTE: newmode must be one of MODE_DEFAULT, MODE_FRAC, MODE_INT,
MODE_REAL, MODE_EXP, MODE_HEX, MODE_OCTAL, MODE_BINARY
SEE ALSO
base2, config, str
## Copyright (C) 1999 Landon Curt Noll
##
## Calc is open software; you can redistribute it and/or modify it under
## the terms of the version 2.1 of the GNU Lesser General Public License
## as published by the Free Software Foundation.
##
## Calc is distributed in the hope that it will be useful, but WITHOUT
## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
## Public License for more details.
##
## A copy of version 2.1 of the GNU Lesser General Public License is
## distributed with calc under the filename COPYING-LGPL. You should have
## received a copy with calc; if not, write to Free Software Foundation, Inc.
## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
##
## Under source code control: 1994/09/30 00:09:39
## File existed as early as: 1994
##
## chongo <was here> /\oo/\ http://www.isthe.com/chongo/
## Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/