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69 lines
2.0 KiB
Plaintext
69 lines
2.0 KiB
Plaintext
#!/usr/local/src/cmd/calc/calc -q -f
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/*
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* sqaure - print the squares of input values
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*
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* Copyright (C) 2000-2007 Ernest Bowen
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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: square.calc,v 30.1 2007/03/16 11:12:11 chongo Exp $
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* @(#) $Source: /usr/local/src/bin/calc/cscript/RCS/square.calc,v $
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*
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* Under source code control: 2000/12/15 06:52:01
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* File existed as early as: 2000
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*
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* Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
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*/
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/*
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* Usage:
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*
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* From the shell:
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*
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* ./square
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* cat file | ./square
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* echo "123" | ./square
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*
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* Within calc:
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*
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* > read square
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*
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* With input from a terminal, there is no prompt but each non-empty
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* line of input is evaluated as a calc expression and if it can be
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* calculated, the square of the value of that expression is displayed.
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* Execution stops when an empty line is input.
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*
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* From the shell:
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*
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* ./square
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*
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* The following shows lines of input followed by output:
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*
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* 1234
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* 1522756
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* ln(2)
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* ~.48045301391820142467
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* config("mode","frac"), bernoulli(10)
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* 25/4356
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* config("mode", "hex"), 0xff
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* 0xfe01
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*/
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global s;
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while ((s = prompt("")))
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print "\t":eval(s)^2;
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