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109 lines
2.8 KiB
Plaintext
109 lines
2.8 KiB
Plaintext
NAME
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base - set default output base
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SYNOPSIS
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base([mode])
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TYPES
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mode real
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return real
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DESCRIPTION
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The base function allows one to specify how numbers should be
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printed. The base function provides a numeric shorthand to the
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config("mode") interface. With no args, base() will return the
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current mode. With 1 arg, base(val) will set the mode according to
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the arg and return the previous mode.
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The following convention is used to declare modes:
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base equivalent
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config("mode")'s
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2 "binary" base 2 fractions
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"bin"
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8 "octal" base 8 fractions
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"oct"
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10 "real" base 10 floating point
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"float"
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"default"
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-10 "integer" base 10 integers
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"int"
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16 "hexadecimal" base 16 fractions
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"hex"
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1/3 "fraction" base 10 fractions
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"frac"
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1e20 "scientific" base 10 scientific notation
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"sci"
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"exp"
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For convenience, any non-integer value is assumed to mean base 10
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fractions and any integer >= 2^64 is assumed to mean base 10
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scientific notation.
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These base() calls have the same meaning as config("mode", "fraction"):
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base(1/3) base(0.1415) base(16/37)
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These base() calls have the same meaning as config("mode", "scientific"):
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base(1e20) base(2^64) base(2^8191-1)
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However the base() function will only return one of the base values
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listed in the table above.
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EXAMPLE
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> base()
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10
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> base(8)
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012
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> print 10
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012
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LIMITS
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none
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LINK LIBRARY
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int math_setmode(int newmode)
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NOTE: newmode must be one of MODE_DEFAULT, MODE_FRAC, MODE_INT,
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MODE_REAL, MODE_EXP, MODE_HEX, MODE_OCTAL, MODE_BINARY
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SEE ALSO
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base2, config, str
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## Copyright (C) 1999 Landon Curt Noll
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##
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## Calc is open software; you can redistribute it and/or modify it under
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## the terms of the version 2.1 of the GNU Lesser General Public License
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## as published by the Free Software Foundation.
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##
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## Calc is distributed in the hope that it will be useful, but WITHOUT
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## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
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## Public License for more details.
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##
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## A copy of version 2.1 of the GNU Lesser General Public License is
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## distributed with calc under the filename COPYING-LGPL. You should have
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## received a copy with calc; if not, write to Free Software Foundation, Inc.
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## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
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##
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## @(#) $Revision: 29.5 $
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## @(#) $Id: base,v 29.5 2002/12/29 09:17:54 chongo Exp $
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## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/base,v $
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##
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## Under source code control: 1994/09/30 00:09:39
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## File existed as early as: 1994
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##
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## chongo <was here> /\oo/\ http://www.isthe.com/chongo/
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## Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
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