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120 lines
3.6 KiB
Plaintext
120 lines
3.6 KiB
Plaintext
NAME
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base2 - set 2nd output base
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SYNOPSIS
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base2([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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By default, calc will output values according to the default base
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as controlled by the base() builtin function.
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The base2() builtin function, if given a non-zero argument, enables
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double base output mode. In double base output mode, calc values
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are displayed twice, once according to base() and again according
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to base2(). In double base output mode, the second time a value is
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displayed, it is displayed within comments:
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21701 /* 0x54c5 */
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The arguments for base2() are identical to base() with the addition
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of the 0 value:
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base2 equivalent
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config("mode2")'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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1000 "engineering" base 10 notation with exponent
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"eng" multiple of 3
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0 "off" disable double base output
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For convenience, any non-integer non-zero value is assumed to mean
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base 10 fractions and any integer >= 2^64 is assumed to mean base 10
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scientific notation.
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These base2() calls have the same meaning as config("mode2", "fraction"):
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base2(1/3) base2(0.1415) base2(16/37)
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These base2() calls have the same meaning as config("mode2", "scientific"):
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base2(1e20) base2(2^64) base2(2^8191-1)
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However the base2() 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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; base2()
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0
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; base2(8)
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0 /* 0 */
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; print 10
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10 /* 012 */
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; base2(16),
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; 131072
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131072 /* 0x20000 */
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; 2345
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2345 /* 0x929 */
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LIMITS
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none
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LINK LIBRARY
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int math_setmode2(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_ENG, MODE_HEX, MODE_OCTAL, MODE_BINARY,
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MODE2_OFF
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SEE ALSO
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base, config, str
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## Copyright (C) 2002,2021 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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## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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##
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## Under source code control: 2002/12/29 00:21:07
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## File existed as early as: 2002
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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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