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69 lines
2.1 KiB
Plaintext
69 lines
2.1 KiB
Plaintext
NAME
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frac - return the fractional part of a number or of numbers in a value
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SYNOPSIS
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frac(x)
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TYPES
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If x is an object of type xx, frac(x) requires xx_frac to have been
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defined; other conditions on x and the value returned depend on
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the definition of xx_frac.
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For other x:
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x number (real or complex), matrix
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return number or matrix
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DESCRIPTION
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If x is an integer, frac(x) returns zero. For other real values of x,
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frac(x) returns the real number f for which x = i + f, where i is an
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integer, sgn(f) = sgn(x), and abs(f) < 1.
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If x is complex, frac(x) returns frac(re(x)) + frac(im(x))*1i.
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If x is a matrix, frac(x) returns the matrix m with the same structure
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as x in which m[[i]] = frac(x[[i]]).
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EXAMPLE
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> c = config("mode", "frac")
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> print frac(3), frac(22/7), frac(27/7), frac(-3.125), frac(2.15 - 3.25i)
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0 1/7 6/7 -1/8 3/20-1i/4
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LIMITS
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none
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LINK LIBRARY
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NUMBER *qfrac(NUMBER *x)
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COMPLEX *cfrac(COMPLEX *x)
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MATRIX *matfrac(MATRIX *x)
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SEE ALSO
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int, ceil, floor
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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: 29.2 $
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## @(#) $Id: frac,v 29.2 2000/06/07 14:02:33 chongo Exp $
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## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/frac,v $
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##
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## Under source code control: 1995/12/18 03:30:59
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## File existed as early as: 1995
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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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