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129 lines
3.7 KiB
Plaintext
129 lines
3.7 KiB
Plaintext
calc shell script examples
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--------------------------
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These calc shell scripts are provided because they serve as examples of
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how use the calc language, and/or because the authors thought them to
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be useful!
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Please note that calc shell scripts must start with the line:
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#!/usr/local/src/cmd/calc/calc -q -f
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The above line MUST start in column 1 of the first line. The first line
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must also end in -f. The -q is optional, but is recommended to disable
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the processing of calc startup scripts.
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Also please note that single # shell line comments are not supported in calc.
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Comments must be /* c-like comment */ or start with a double ## symbol.
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This is the correct way to form a calc shell script:
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#!/usr/local/src/cmd/calc/calc -q -f
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/* a correct comment */
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## another correct comment
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### two or more together is also a comment
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/*
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* another correct comment
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*/
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print "2+2 =", 2+2; ## yet another comment
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The first argument after the path to calc executable must be an -S.
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The next arguments are optional. The -q is often recommended because
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it will disable the processing of the startup scripts.
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For more informaton about calc command lines, see "help usage".
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This next example WRONG:
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#!/usr/local/src/cmd/calc/calc -q
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# This is not a calc calc comment because it has only a single #
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# You must to start comments with ## or /*
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# is is also wrong because the first line does not end in -f
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print "This example has invalid comments"
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#####
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If you write something that you think is useful, please send it to:
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calc-contrib at asthe dot com
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[[ NOTE: Replace 'at' with @, 'dot' is with . and remove the spaces ]]
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[[ NOTE: The EMail address uses 'asthe' and the web site URL uses 'isthe' ]]
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For more info, see:
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help script
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help cscript
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=-=
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4dsphere
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Determine if 6 points lie on the surface of a 4-dimensional sphere in R^4.
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4dsphere x0 y0 z0 w0 x1 y1 z1 w1 ... x5 y5 z5 w5
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x0 y0 z0 w0 point 0 in R^4
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x1 y1 z1 w1 point 1 in R^4
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... ...
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x5 y5 z5 w5 point 5 in R^4
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fproduct filename term ...
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Write the big Endian product of terms to a file. Use - for stdout.
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mersenne exp
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Print the value of 2^exp-1.
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piforever
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Print the value of pi forever, or as long as you cpu / memory allows.
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plus arg ...
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Print the sum of 1 or more arguments.
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powerterm [base_limit] value
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Print the value as a sum (or difference) of powers of integers up
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to and including powers <= base_limit. By default, base_limit is 10000.
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simple
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A trivial example of a calc shell script.
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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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## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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##
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## @(#) $Revision: 30.1 $
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## @(#) $Id: README.src,v 30.1 2007/03/16 11:12:11 chongo Exp $
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## @(#) $Source: /usr/local/src/cmd/calc/cscript/RCS/README.src,v $
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##
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## Under source code control: 1999/12/17 10:23:40
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## File existed as early as: 1999
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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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