Commit Graph

35 Commits

Author SHA1 Message Date
Landon Curt Noll
fdbf53d7e8 add vercos(), avercos(), covercos(), acovercos()
Improved trig help files.

Added new vercos(x, [,eps]) for versed cosine and covercos(x, [,eps])
for inverse versed cosine.

Added new avercos(x, [,eps]) for inverse versed cosine and acovercos(x, [,eps])
for inverse coversed cosine.
2023-09-06 00:52:37 -07:00
Landon Curt Noll
86f1d9e029 add new aversin and acoversin builtin functions.
Added new aversin(x, [,eps]) for inverse versed sine and acoversin(x, [,eps])
for inverse coversed sine.

Improved trig function help files to reference use of complex arguments
that while supported were not documented.

Removed old Makefile testing rules for make dbx and make gdb.

Improved "make run" to execute calccalc using shared libraries
from the local directory, and with reading of the startup scripts
disabled.

Changed "make prep" to perform various tests that are used to
help verify that calc is ready for a release.

Added Makefile testing rule testfuncsort to check for the sort
of the builtin function list.  Changed the order that builtin
functions are listed by "show builtin" and the help/builtin to
match the sorting of "LANG=C LC_ALL=C sort -d -u".
2023-09-03 23:37:09 -07:00
Landon Curt Noll
8edff80826 improve comments for versed sine and coversed sine functions 2023-09-02 23:10:24 -07:00
Landon Curt Noll
7398fbb2e9 rename vercos to coversin
The code to compute 1 - sin(x) belongs to coversin, not vercos.
2023-09-01 23:26:26 -07:00
Landon Curt Noll
b0a48a2b70 add new versin and vercos builtin functions
Added new versin(x, [,eps]) for versed sine and vercos(x, [,eps])
for versed cosine.

Updated trig help files.
2023-09-01 17:38:14 -07:00
Landon Curt Noll
4e5fcc8812 add log2(x [,eps]) builtin function
Added log2(x [,eps]) builtin function.  When x is an integer
power of 2, log2(x) will return an integer, otherwise it will
return the equivalent of ln(x)/ln(2).
2023-08-27 19:02:37 -07:00
Landon Curt Noll
3c18e6e25b changed C source to use C booleans with backward compatibility
Fix "Under source code control" date for new version.h file.

Sorted the order of symbols printed by "make env".

Test if <stdbool.h> exists and set HAVE_STDBOOL_H accordingly
in have_stdbool.h.  Added HAVE_STDBOOL_H to allow one to force
this value.

Added "bool.h" include file to support use of boolean symbols,
true and false for pre-c99 C compilers.  The "bool.h" include
file defines TRUE as true, FALSE as false, and BOOL as bool:
for backward compatibility.

The sign in a ZVALUE is now of type SIGN, whcih is either
SB32 when CALC2_COMPAT is defined, or a bool.

Replaced in C source, TRUE with true, FALSE with false, and
BOOL with bool.
2023-08-19 19:20:32 -07:00
Landon Curt Noll
f4f19f21dc Add config("complex_space") to control spaces around + or - in complex values
Added config("fraction_space", boolean) to help/config, along with
a few few minor text improvements.  Updated cal/regress to test
config("tilde_space").

Added config("complex_space", boolean).  The "complex_space" controls
whether or not a space (' ') is printed before and after the + or -
in complex values.

By default, config("complex_space") is false.

For example, with the default, config("complex_space", 0):

    ; asin(2)
	    1.57079632679489661923-1.31695789692481670863i

With config("complex_space", 1):

    ; asin(2)
	    1.57079632679489661923 - 1.31695789692481670863i

NOTE: Use of config("complex_space", 1) can break printing and scanning
      of fractional values via "%r".

NOTE: Use of config("complex_space", 1) can break printing and scanning
      of complex values via "%c".

Added config("complex_space", boolean) to help/config, along with
a few few minor text improvements.  Updated cal/regress to test
config("complex_space").
2022-12-04 00:53:15 -08:00
Landon Curt Noll
17702a4799 Add config("fraction_space") to control spaces around printing fractions
Added config("tilde_space", boolean) to help/config, along with
a few few minor text improvements.  Updated cal/regress to test
config("tilde_space").

Added config("fraction_space", boolean).  The "fraction_space" controls
whether or not a space (' ') is printed before and after fractions.
By default, config("fraction_space") is false.

For example, with the default, config("fraction_space", 0):

    ; base(1/3),
    ; 1/7
            1/7

With config("fraction_space", 1):

    ; base(1/3),
    ; 1/7
            1 / 7

NOTE: Use of config("fraction_space", 1) can break printing and scanning
      of fractional values via "%r".

NOTE: Use of config("fraction_space", 1) can break printing and scanning
      of complex values via "%c".

Added config("fraction_space", boolean) to help/config, along with
a few few minor text improvements.  Updated cal/regress to test
config("tilde_space").
2022-12-03 14:39:25 -08:00
Landon Curt Noll
3f177f2d81 Improved source code flow
Changed /*NOTREACHED*/ to not_reached(); and use "attribute.h".

Added .PHONY rule, just after all rule, to Makefiles.

Fixed an improper indentation issue.
2022-01-22 01:16:07 -08:00
Landon Curt Noll
ac0d84eef8 Release v2.12.9.0
Added notes to help/unexpected about:

    display() will limit the number of digits printed after decimal point

    %d will format after the decimal point for non-integer numeric values

    %x will format as fractions for non-integer numeric values

    fprintf(fd, "%d\n", huge_value) may need fflush(fd) to finish

Fixed Makefile dependencies for the args.h rule.

Fixed Makefile cases where echo with -n is used.  On some systems,
/bin/sh does not use -n, so we must call /bin/echo -n instead
via the ${ECHON} Makefile variable.

Add missing standard tools to sub-Makefiles to make them
easier to invoke directly.

Sort lists of standard tool Makefile variables and remove duplicates.

Declare the SHELL at the top of Makefiles.

Fixed the depend rule in the custom Makefile.

Improved the messages produced by the depend in the Makefiles.

Changed the UNUSED define in have_unused.h to be a macro with
a parameter.  Changed all use of UNUSED in *.c to be UNUSED(x).

Removed need for HAVE_UNUSED in building the have_unused.h file.

 CCBAN is given to ${CC} in order to control if banned.h is in effect.

 The banned.h attempts to ban the use of certain dangerous functions
 that, if improperly used, could compromise the computational integrity
 if calculations.

 In the case of calc, we are motivated in part by the desire for calc
 to correctly calculate: even during extremely long calculations.

 If UNBAN is NOT defined, then calling certain functions
 will result in a call to a non-existent function (link error).

 While we do NOT encourage defining UNBAN, there may be
 a system / compiler environment where re-defining a
 function may lead to a fatal compiler complication.
 If that happens, consider compiling as:

    make clobber all chk CCBAN=-DUNBAN

 as see if this is a work-a-round.

 If YOU discover a need for the -DUNBAN work-a-round, PLEASE tell us!
 Please send us a bug report.  See the file:

    BUGS

 or the URL:

    http://www.isthe.com/chongo/tech/comp/calc/calc-bugrept.html

 for how to send us such a bug report.

 Added the building of have_ban_pragma.h, which will determine
 if "#pragma GCC poison func_name" is supported.  If it is not,
 or of HAVE_PRAGMA_GCC_POSION=-DHAVE_NO_PRAGMA_GCC_POSION, then
 banned.h will have no effect.

 Fixed building of the have_getpgid.h file.
 Fixed building of the have_getprid.h file.
 Fixed building of the have_getsid.h file.
 Fixed building of the have_gettime.h file.
 Fixed building of the have_strdup.h file.
 Fixed building of the have_ustat.h file.
 Fixed building of the have_rusage.h file.

 Added HAVE_NO_STRLCPY to control if we want to test if
 the system has a strlcpy() function.  This in turn produces
 the have_strlcpy.h file wherein the symbol HAVE_STRLCPY will
 be defined, or not depending if the system comes with a
 strlcpy() function.

 If the system does not have a strlcpy() function, we
 compile our own strlcpy() function.  See strl.c for details.

 Added HAVE_NO_STRLCAT to control if we want to test if
 the system has a strlcat() function.  This in turn produces
 the have_strlcat.h file wherein the symbol HAVE_STRLCAT will
 be defined, or not depending if the system comes with a
 strlcat() function.

 If the system does not have a strlcat() function, we
 compile our own strlcat() function.  See strl.c for details.

 Fixed places were <string.h>, using #ifdef HAVE_STRING_H
 for legacy systems that do not have that include file.

 Added ${H} Makefile symbol to control the announcement
 of forming and having formed hsrc related files.  By default
 H=@ (announce hsrc file formation) vs. H=@: to silence hsrc
 related file formation.

 Explicitly turn off quiet mode (set Makefile variable ${Q} to
 be empty) when building rpms.

 Improved and fixed the hsrc build process.

 Forming rpms is performed in verbose mode to assist debugging
 to the rpm build process.

 Compile custom code, if needed, after main code is compiled.
2021-03-11 01:54:28 -08:00
Landon Curt Noll
c02725f036 Update copyright date to 2021 for all prev typo fixes 2021-02-12 22:27:51 -08:00
Landon Curt Noll
507fe026e5 Fix many spelling errors 2021-02-12 22:09:47 -08:00
Landon Curt Noll
54a7a3f7bc Release 2.12.6.10
Added a patch to replaces the manual search for include files
    in $(INCDIR) in the have_*.h targets with compiler invocations.
    Thanks goes to Helmut Grohne <helmut at subdivi dot de> who
    implemented the patch and posted it to the Debian bug tracker
    and Martin Buck (m at rtin-buck dor de) for forwarding it to us.

    The check_include make rule was fixed to not assume /usr/include.

    The qprintnum() function now takes outdigits as a 3rd argument.
    Most of the time, this 3rd argument is just conf->outdigits.
    But when it comes to the experimental '%g', this value can
    change.  This avoids having to modify conf->outdigits.
2018-10-19 19:33:57 -07:00
Landon Curt Noll
a31078bbec Remove all RCS @(#) lines and RCS strings
Some folks might think: “you still use RCS”?!?  And we will say,
hey, at least we switched from SCCS to RCS back in … I think it was
around 1994 ... at least we are keeping up! :-) :-) :-)

Logs say that SCCS version 18 became RCS version 19 on 1994 March 18.

RCS served us well.  But now it is time to move on.   And so we are
switching to git.

Calc releases produce a lot of file changes.  In the 125 releases
of calc since 1996, when I started managing calc releases, there
have been 15473 file mods!
2017-05-23 01:33:23 -07:00
Landon Curt Noll
7f125396c1 Release calc version 2.12.4.9 2017-05-21 15:38:57 -07:00
Landon Curt Noll
c9fce6a5bb Release calc version 2.12.4.1 2017-05-21 15:38:56 -07:00
Landon Curt Noll
5bada5fefd Release calc version 2.12.4.6 2017-05-21 15:38:55 -07:00
Landon Curt Noll
e229393250 Release calc version 2.12.4.2 2017-05-21 15:38:53 -07:00
Landon Curt Noll
ca0dd4560b Release calc version 2.12.2 2017-05-21 15:38:50 -07:00
Landon Curt Noll
c773ee736f Release calc version 2.12.1.11 2017-05-21 15:38:50 -07:00
Landon Curt Noll
58d94b08d8 Release calc version 2.12.0 2017-05-21 15:38:45 -07:00
Landon Curt Noll
7165fa17c7 Release calc version 2.11.11 2017-05-21 15:38:45 -07:00
Landon Curt Noll
3d55811205 Release calc version 2.11.4t2 2017-05-21 15:38:39 -07:00
Landon Curt Noll
296aa50ac7 Release calc version 2.11.2t1 2017-05-21 15:38:38 -07:00
Landon Curt Noll
5e098d2adf Release calc version 2.11.4t1 2017-05-21 15:38:38 -07:00
Landon Curt Noll
ae2a752314 Release calc version 2.11.3t0 2017-05-21 15:38:38 -07:00
Landon Curt Noll
61dd47526f Release calc version 2.11.2t1.0 2017-05-21 15:38:38 -07:00
Landon Curt Noll
6f5e8bf1b6 Release calc version 2.11.1t1 2017-05-21 15:38:36 -07:00
Landon Curt Noll
0514dc0de9 Release calc version 2.11.0t10.5.1 2017-05-21 15:38:36 -07:00
Landon Curt Noll
867002aa77 Release calc version 2.11.1 2017-05-21 15:38:35 -07:00
Landon Curt Noll
96c34adee3 Release calc version 2.11.0t10 2017-05-21 15:38:33 -07:00
Landon Curt Noll
a7d401cd65 Release calc version 2.11.0t8.2 2017-05-21 15:38:29 -07:00
Landon Curt Noll
6e10e97592 Release calc version 2.10.3t5.45 2017-05-21 15:38:25 -07:00
Landon Curt Noll
4618313a82 Release calc version 2.10.2t30 2017-05-21 15:38:25 -07:00