- GiNaC-devel - ginac.de

[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-388-g073bf40
by git＠ginac.de 31 Jul '13

31 Jul '13

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "GiNaC -- a C++ library for symbolic computations". The branch, master has been updated via 073bf40a73e419a3dbcb6dfa190947ce2cc3bdce (commit) via 1c760f15dc031c29db4bb857e3d70980b55437dc (commit) via c19c2786ec3345720f0358a08bf8f781dcde0f02 (commit) from ca11a8c1471ae650f0124db5e9bf48cc04f9d8f0 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit 073bf40a73e419a3dbcb6dfa190947ce2cc3bdce Author: Richard Kreckel <kreckel(a)ginac.de> Date: Wed Jul 31 20:42:16 2013 +0000 Add support for Texinfo-5.0. Recent versions of Texinfo complained about misplaced @subsection. Change them into @appendixsection. commit 1c760f15dc031c29db4bb857e3d70980b55437dc Author: Richard Kreckel <kreckel(a)ginac.de> Date: Tue Jul 30 18:19:49 2013 +0000 Shut up recent texinfo warning. It seems like dircategory has to come before the first node. commit c19c2786ec3345720f0358a08bf8f781dcde0f02 Author: Richard Kreckel <kreckel(a)ginac.de> Date: Mon Jul 29 08:05:22 2013 +0000 Shut up recent automake warning. 'INCLUDES' was the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS'). ----------------------------------------------------------------------- Summary of changes: doc/examples/ginac-examples.texi | 7 ++++--- doc/tutorial/ginac.texi | 4 ++-- ginsh/Makefile.am | 2 +- 3 files changed, 7 insertions(+), 6 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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Log evaluation
by Vladimir V. Kisil 31 Jul '13

31 Jul '13

Dear All, I propose to add the evaluation rule log(p^a) -> a*log(p) if p>0 and a is real. The patch (including the respective check) is attached. Best wishes, Vladimir -- Vladimir V. Kisil email: kisilv(a)maths.leeds.ac.uk www: http://www.maths.leeds.ac.uk/~kisilv/ Book: Geometry of Mobius Transformations http://www.worldscientific.com/worldscibooks/10.1142/p835

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Expand method in functions
by Vladimir V. Kisil 31 Jul '13

31 Jul '13

Dear All, So far we had pow(2,a+b).expand() -> pow(2,a)*pow(2,b), but exp(a+b).expand() -> exp(a+b). It will be also nice to have abs(a*b).expand() -> abs(a)*abs(b) and log(a*b).expand() -> log(a) + log(b) (for positive a and b, of course). Thus, I am proposing a patch for this. Best wishes, Vladimir -- Vladimir V. Kisil email: kisilv(a)maths.leeds.ac.uk www: http://www.maths.leeds.ac.uk/~kisilv/ Book: Geometry of Mobius Transformations http://www.worldscientific.com/worldscibooks/10.1142/p835

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Some more evaluation rules for abs()
by Vladimir V. Kisil 31 Jul '13

31 Jul '13

Dear All, I have added some more evaluation rules for abs(). They evaluate absolute values of powers and exponents. Simple checks are added as well. The effect is like this: realsymbol a("a"), b("b"), x("x"), y("y"); cout << abs(exp(x+I*y)).eval() << endl; // before: -> abs(exp(x+I*y)) // now: -> exp(x) cout << abs(pow(x+I*y,a+I*b)).eval() << endl; // before: -> abs((x+I*y)^(I*b+a)) // now: -> abs(x+I*y)^a Best wishes, Vladimir -- Vladimir V. Kisil email: kisilv(a)maths.leeds.ac.uk www: http://www.maths.leeds.ac.uk/~kisilv/ Book: Geometry of Mobius Transformations http://www.worldscientific.com/worldscibooks/10.1142/p835

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Re: [GiNaC-devel] Build issues (Was: Simplifying powers)
by Vladimir V. Kisil 31 Jul '13

31 Jul '13

Dear Alexei, >>>>> On Wed, 31 Jul 2013 11:24:51 +0300, Alexei Sheplyakov <alexei.sheplyakov(a)gmail.com> said: ASh> It looks like bison is missing (the configure script should ASh> have printed the corresponding warning). Could you please send ASh> your config.log file? Bison is present, as far as I can see. So, I am attaching the config.log and giving the output of autoreconf below. Best wishes, Vladimir -- Vladimir V. Kisil email: kisilv(a)maths.leeds.ac.uk www: http://www.maths.leeds.ac.uk/~kisilv/ Book: Geometry of Mobius Transformations http://www.worldscientific.com/worldscibooks/10.1142/p835 ================================================================= libtoolize: putting auxiliary files in AC_CONFIG_AUX_DIR, `config'. libtoolize: copying file `config/ltmain.sh' libtoolize: putting macros in AC_CONFIG_MACRO_DIR, `m4'. libtoolize: copying file `m4/libtool.m4' libtoolize: copying file `m4/ltoptions.m4' libtoolize: copying file `m4/ltsugar.m4' libtoolize: copying file `m4/ltversion.m4' libtoolize: copying file `m4/lt~obsolete.m4' configure.ac:31: installing 'config/config.guess' configure.ac:31: installing 'config/config.sub' configure.ac:21: installing 'config/install-sh' configure.ac:21: installing 'config/missing' check/Makefile.am: installing 'config/depcomp' parallel-tests: installing 'config/test-driver' doc/examples/Makefile.am:8: installing 'config/texinfo.tex' doc/tutorial/Makefile.am:4: installing 'config/mdate-sh' ginsh/Makefile.am:7: warning: 'INCLUDES' is the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS') configure.ac: installing 'config/ylwrap'

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[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-385-gca11a8c
by git＠ginac.de 30 Jul '13

30 Jul '13

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "GiNaC -- a C++ library for symbolic computations". The branch, master has been updated via ca11a8c1471ae650f0124db5e9bf48cc04f9d8f0 (commit) via b23a2dfdcd478b00a11c6c2184fbe197a3ac5bfb (commit) from e45f9fca76b81e01ffa5edc417c29538fa05147b (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit ca11a8c1471ae650f0124db5e9bf48cc04f9d8f0 Author: Vladimir V. Kisil <kisilv(a)maths.leeds.ac.uk> Date: Sun Jul 28 23:25:01 2013 +0100 Add the case of c1=-1 and c2>0 to the rewriting rule of exponents: (x^c1)^c2 -> x^(c1 * c2) commit b23a2dfdcd478b00a11c6c2184fbe197a3ac5bfb Author: Alexei Sheplyakov <Alexei.Sheplyakov(a)gmail.com> Date: Sun Jul 28 18:43:06 2013 +0300 [bugfix] factor_univariate(): handle polinomials over rationals (no segfaults any more). ----------------------------------------------------------------------- Summary of changes: check/CMakeLists.txt | 1 + check/Makefile.am | 4 ++++ check/exam_powerlaws.cpp | 6 +++--- check/factor_univariate_bug.cpp | 21 +++++++++++++++++++++ ginac/factor.cpp | 12 +++++++++++- ginac/power.cpp | 7 ++++--- 6 files changed, 44 insertions(+), 7 deletions(-) create mode 100644 check/factor_univariate_bug.cpp hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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Housekeeping work in inifcns.cpp
by Vladimir V. Kisil 30 Jul '13

30 Jul '13

Dear All, I made a bit of housekeeping work in inifcns.cpp: 1) Make abs_power aware on even powers, even if they are not numeric. 2) Add several hold() to returns, which cannot be processed further. I shall admit, that this can be misdone, so please check. Best wishes, Vladimir -- Vladimir V. Kisil email: kisilv(a)maths.leeds.ac.uk www: http://www.maths.leeds.ac.uk/~kisilv/ Book: Geometry of Mobius Transformations http://www.worldscientific.com/worldscibooks/10.1142/p835

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Invitation to connect on LinkedIn
by Frank Greenhalgh 12 Jul '13

12 Jul '13

LinkedIn ------------ I'd like to add you to my professional network on LinkedIn. - Frank Frank Greenhalgh Product Assurance - Math at IGT Reno, Nevada Area Confirm that you know Frank Greenhalgh: https://www.linkedin.com/e/-smpzss-hj102oyr-4s/isd/14926177951/MZjs48PJ/?hs… -- You are receiving Invitation to Connect emails. Click to unsubscribe: http://www.linkedin.com/e/-smpzss-hj102oyr-4s/pQQaivesQERn6ZpSpQQtivesQEgGd… (c) 2012 LinkedIn Corporation. 2029 Stierlin Ct, Mountain View, CA 94043, USA.

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is_ex_the_function
by morusaka＠libero.it 02 Feb '13

02 Feb '13

Hi, I can't understand why, when I try to use is_ex_the_function with the power function, I get a: >> error: ‘power_SERIAL’ was not declared in this scope My code is something like this: symbol x("x"); ex expr = power(x, 2); std::cout << expr << std::endl; std::cout << is_ex_the_function(expr, power) << std::endl; I get my error on line 4. On the other hand, everything works fine with: symbol x("x"); ex expr = sin(x); std::cout << expr << std::endl; std::cout << is_ex_the_function(expr, sin) << std::endl; Could you please help me? Thank you, Luca-

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[SCM] GiNaC -- a C++ library for symbolic computations branch, master, updated. release_1-4-0-383-ge45f9fc
by git＠ginac.de 23 Jan '13

23 Jan '13

This is an automated email from the git hooks/post-receive script. It was generated because a ref change was pushed to the repository containing the project "GiNaC -- a C++ library for symbolic computations". The branch, master has been updated via e45f9fca76b81e01ffa5edc417c29538fa05147b (commit) from 47522fcd15579cade744182eb0c714331ca230c7 (commit) Those revisions listed above that are new to this repository have not appeared on any other notification email; so we list those revisions in full, below. - Log ----------------------------------------------------------------- commit e45f9fca76b81e01ffa5edc417c29538fa05147b Author: Richard Kreckel <kreckel(a)ginac.de> Date: Wed Jan 23 09:19:26 2013 +0100 Add symbol::set_TeX_name(string) member function. This allows setting a symbol's TeX-name after construction. ----------------------------------------------------------------------- Summary of changes: ginac/symbol.h | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) hooks/post-receive -- GiNaC -- a C++ library for symbolic computations

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