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54 lines
1.6 KiB
Plaintext
54 lines
1.6 KiB
Plaintext
NAME
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pfact - product of primes up to specified integer
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SYNOPSIS
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pfact(n)
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TYPES
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n nonnegative integer
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return positive integer
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DESCRIPTION
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Returns the product of primes p_i for which p_i <= n.
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EXAMPLE
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> for (i = 0; i <= 16; i++) print pfact(i),:;
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1 1 2 6 6 30 30 210 210 210 210 2310 2310 30030 30030 30030 30030
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LIMITS
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n < 2^24
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LINK LIBRARY
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NUMBER *qpfact(NUMBER *n)
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void zpfact(ZVALUE z, ZVALUE *dest)
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SEE ALSO
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fact, lcmfact
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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: pfact,v 29.2 2000/06/07 14:02:33 chongo Exp $
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## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/pfact,v $
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##
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## Under source code control: 1995/12/18 12:34:57
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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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