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91991bb729
Fixed a mistake in "help intro" where some inserted text
changed the value of "." and thus made the next result
incorrect.
Clarified in "help factor" that 1 is returned if no
factor below the limit was found.
Removed Makefile variable ${MAKEFILE_REV}.
The missing cscript/square.calc file has been restored.
Fixed compiler errors and warnings related to GCC.
In particular, gcc/9.3.1 and gcc/10.2.1 now compile
calc without any compiler errors or warnings,
even with -Werror -Wextra -pedantic.
To print out information about the calc compliation
environment, we added the following make rule:
make calcinfo
Improved how 'make debug' operates.
Moved help/contrib to CONTRIB-CODE. The help/contrib file
is now build from a copy of CONTRIB-CODE.
Created a new calc bug report Email address. Created a new calc
question Email address. Created a new calc contribution Email
address. See the BUGS file for details.
Added "help questions" to print the QUESIONS help file.
If the environment variable $CALCHELP is defined and is non-empty,
then calc help files will be in the direcgory by the $CALCHISTFILE
environment variable.
If the environment variable $CALCCUSTOMHELP is defined and is
non-empty, then custom calc help files will be in the direcgory
by the $CALCCUSTOMHELP environment variable.
The calc-tester mailing list has been retired. See:
* How to submit a calc bug report:
http://www.isthe.com/chongo/tech/comp/calc/calc-bugrept.html
* How to contribute code to calc:
http://www.isthe.com/chongo/tech/comp/calc/calc-contrib.html
* How to submit a question about calc:
http://www.isthe.com/chongo/tech/comp/calc/calc-question.html
calc shell script examples
--------------------------
These calc shell scripts are provided because they serve as examples of
how use the calc language, and/or because the authors thought them to
be useful!
Please note that calc shell scripts must start with the line:
#!/usr/local/src/bin/calc/calc -q -f
The above line MUST start in column 1 of the first line. The first line
must also end in -f. The -q is optional, but is recommended to disable
the processing of calc startup scripts.
Also please note that single # shell line comments are not supported in calc.
Comments must be /* c-like comment */ or start with a double ## symbol.
This is the correct way to form a calc shell script:
#!/usr/local/src/bin/calc/calc -q -f
/* a correct comment */
## another correct comment
### two or more together is also a comment
/*
* another correct comment
*/
print "2+2 =", 2+2; ## yet another comment
The first argument after the path to calc executable must be an -S.
The next arguments are optional. The -q is often recommended because
it will disable the processing of the startup scripts.
For more informaton about calc command lines, see "help usage".
This next example WRONG:
#!/usr/local/src/bin/calc/calc -q
# This is not a calc calc comment because it has only a single #
# You must to start comments with ## or /*
# is is also wrong because the first line does not end in -f
print "This example has invalid comments"
=-=
For more info, see:
help script
help cscript
#####
4dsphere
Determine if 6 points lie on the surface of a 4-dimensional sphere in R^4.
4dsphere x0 y0 z0 w0 x1 y1 z1 w1 ... x5 y5 z5 w5
x0 y0 z0 w0 point 0 in R^4
x1 y1 z1 w1 point 1 in R^4
... ...
x5 y5 z5 w5 point 5 in R^4
fproduct filename term ...
Write the big Endian product of terms to a file. Use - for stdout.
mersenne exp
Print the value of 2^exp-1.
piforever
Print the value of pi forever, or as long as you cpu / memory allows.
plus arg ...
Print the sum of 1 or more arguments.
powerterm [base_limit] value
Print the value as a sum (or difference) of powers of integers up
to and including powers <= base_limit. By default, base_limit is 10000.
simple
A trivial example of a calc shell script.
## Copyright (C) 1999,2014,2021 Landon Curt Noll
##
## Calc is open software; you can redistribute it and/or modify it under
## the terms of the version 2.1 of the GNU Lesser General Public License
## as published by the Free Software Foundation.
##
## Calc is distributed in the hope that it will be useful, but WITHOUT
## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
## Public License for more details.
##
## A copy of version 2.1 of the GNU Lesser General Public License is
## distributed with calc under the filename COPYING-LGPL. You should have
## received a copy with calc; if not, write to Free Software Foundation, Inc.
## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
##
## Under source code control: 1999/12/17 10:23:40
## File existed as early as: 1999
##
## chongo <was here> /\oo/\ http://www.isthe.com/chongo/
## Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/