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59 lines
1.7 KiB
Plaintext
59 lines
1.7 KiB
Plaintext
NAME
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trunc - truncate a value to a number of decimal places
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SYNOPSIS
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trunc(x [,j])
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TYPES
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x real
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j int
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return real
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DESCRIPTION
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Truncate x to j decimal places. If j is omitted, 0 places is assumed.
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Specifying zero places makes the result identical to int().
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Truncation of a non-integer produces values nearer to zero.
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EXAMPLE
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; print trunc(pi()), trunc(pi(), 5)
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3 3.14159
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; print trunc(3.333), trunc(3.789), trunc(3.333, 2), trunc(3.789, 2)
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3 3 3.33 3.78
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; print trunc(-3.333), trunc(-3.789), trunc(-3.333, 2), trunc(-3.789, 2)
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-3 -3 -3.33 -3.78
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LIMITS
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0 <= j < 2^31
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LINK LIBRARY
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NUMBER *qtrunc(NUMBER *x, *j)
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SEE ALSO
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bround, btrunc, int, round
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## Copyright (C) 1999,2021 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: 1994/09/30 00:52:38
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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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