GiNaC-cint \- An interactive interface for GiNaC based on the Cint C/C++ interpreter
.SH SYNPOSIS
.B ginaccint
+[file ...]
.SH DESCRIPTION
.B ginaccint
is an interactive frontend for the GiNaC symbolic computation
-framework. It is a tool that lets you write interactive programs in
-C++ that directly make use of GiNaC's classes and thus a more complete
-replacement for traditional interactive computer algebra systems than
-\fBginsh\fP(1) is. Programs may be composed as scripts and later compiled
-with the native compiler and linked into the system.
+framework. It is a tool that lets you write interactive programs
+(scripts) in C++ that directly make use of GiNaC's classes. Thus it
+is a more complete replacement for traditional interactive computer
+algebra systems than \fBginsh\fP(1) is. Programs may be composed as
+scripts and later compiled with the native compiler and linked into
+the system.
.SH USAGE
.SS INPUT FORMAT
-After startup, ginsh displays a prompt signifying that it is ready to
+After startup, GiNaC-cint reads and executes the files given as
+command line arguments. If any of these files contains a
+.BR .quit
+command, GiNaC-cint exits at this point.
+Otherwise it displays a prompt signifying that it is ready to
accept your input. All C++ statements are valid as input, extended by
GiNaC's numeric or symbolic expressions. E.g.
-.BR fibonacci(24)/1104;
+.BR fibonacci(numeric(24))/1104;
returns a GiNaC object of class
-.BR ex,
-, which in this case represents the numeric 42. Symbols are declared by
+.BR "ex" ,
+which in this case represents the numeric 42. Symbols are declared by
statements as
.nf
GiNaC> symbol x("x"), y("y"), z;
.fi
which defines two named symbols and an anonymous one for later usage.
-All GiNaC methods and functions are available as they would be typed
+All GiNaC methods and functions are available as they would be coded
in C++. It is not necessary to explicitly invoke a print command as
the last expression is automatically printed:
.nf
GiNaC> pow(x+y,4).expand();
-out2 = x^4+4*x^3*y+6*x^2*y^2+4*x*y^3+y^4
+Out2 = x^4+4*x^3*y+6*x^2*y^2+4*x*y^3+y^4
.fi
-Statements are generally closed by either when a closing brace
+Statements are generally closed either when a closing brace
.RB ( } )
matches the first opening brace
.RB ( { )
or a semicolon
.RB ( ; )
-is encountered.
+is encountered while there are no open braces. This implies that
+an input like
+.nf
+GiNaC> class A {
+ > }
+ > ;
+.fi
+is misinterpreted to be complete after the closing brace.
+Instead you have to write
+.nf
+GiNaC> class A {
+ > };
+.fi
.SS SPECIAL COMMANDS
+
+Lines starting with a dot mark special GiNaC-cint commands. Instead of
+.BR "\fB.cmd\fB"
+you can also write
+.BR "\fB//GiNaC-cint.cmd\fB"
+to be compatible with programs that will be compiled later.
+This is mostly useful for the
+.BR "\fB.function\fB"
+declaration.
+
+Lines starting with #! (for #!/path/ginaccint) are ignored.
+
+
.IP "\fB.cint\fR"
-Switch to cint interactive mode.
+Switch to cint's interactive mode.
+
.IP "\fB.function\fR"
Allow a function definition in interactive mode. GiNaC-cint must be
function definition in valid C++ syntax may be typed in. It becomes
immediatly available for usage.
-.IP "\fBquit;\fR"
-Exit from GiNaC-Cint. Same as
-.BR "exit;" ,
-.BR "bye;" ,
+.IP "\fB.help\fB"
+
+List a short summary of available commands.
+
+.IP "\fB.quit\fR"
+Exit from GiNaC-cint. Same as
+.BR ".bye" ,
+.BR ".exit" ,
.BR ".q" ,
-.BR ".quit" ,
-.BR ".exit " or
-.BR ".bye" .
+.BR "bye;" ,
+.BR "exit; " or
+.BR "quit;" .
+
+.IP "\fB.read filename\fB"
+
+Read a file from disk and execute it in GiNaC-cint
+(recursive call is possible).
+
+.IP "\fB.redirect [filename]\fB"
+
+Redirect
+.BR "\fBOut\fP\fInum\fP"
+output to a file (
+.BR .redirect
+alone redirects output to console).
+
+.IP "\fB.restart\fB"
+
+Restart GiNaC-cint (does not re-read command line files).
+
+.IP "\fB.save filename\fB"
+
+Save the commands you have entered so far in a file.
+
+.IP "\fB.silent\fB"
+
+suppress
+.BR "\fBOut\fP\fInum\fP"
+output (variables are still accessible).
+
+.IP "\fB.> [filename]\fB"
+
+same as
+.BR "\fB.redirect [filename]\fB" .
.IP "\fBOut\fP\fInum\fP"
Returns the expression whose output was marked
GiNaC> s.normal();
Out2 = (-2+x)*(1+x)^(-1)
GiNaC> for (int i=2; i<20; i+=2) {
- > cout << "B(" << i << ")==" << bernoulli(i) << endl;
+ > cout << "B(" << i << ")==" << bernoulli(numeric(i)) << endl;
> }
B(2)==1/6
B(4)==-1/30
is -1+x*z*y
so (-3+2*x*z*y+x^2*z^2*y^2)*(3-4*x*z*y+x^2*z^2*y^2)^(-1)
is (-3+x*z*y)^(-1)*(3+x*z*y)
-GiNaC> quit;
+GiNaC> .quit
.fi
.SH BUGS
<MXJ02154@niftyserve.or.jp> for Cint-related bugs and
<ginac-bugs@ginac.de> for any bugs in the GiNaC engine.
+Only expressions (class
+.BR ex )
+are typed out and available through
+.BR "\fBOut\fP\fInum\fP"
+and
+.BR LAST
+after declaring them. This accounts for some funny behaviour, like
+.BR fibonacci(numeric(7))
+doesn't print, but
+.BR fibonacci(numeric(7))*1
+does, since this is not a naked number but an expression holding
+that number. A warning message is printed in this case only for
+the first occurence.
+
.SH AUTHOR
.TP
The GiNaC Group
\fBginsh\fP(1)
.SH COPYRIGHT
.SS GINAC COPYRIGHT
-Copyright \(co 1999-2000 Johannes Gutenberg Universit\(:at Mainz, Germany
+Copyright \(co 1999-2001 Johannes Gutenberg Universit\(:at Mainz, Germany
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
.SS CINT COPYRIGHT
Copyright \(co of Cint and associated tools are owned by Agilent
-Technologies Japan Company and the author. Acknowledgement to the
-author by e-mail is recommended at installation. Source code, binary
-executable or library of Cint and associated tools can be used,
-modified and distributed free of charge for any purpose provided that
-the copyright notice appear in all copies and that both that copyright
-notice and this permission notice appear in documentation.
-Registration is requested, at this moment, for commercial use. Send
-e-mail to the author <MXJ02154@niftyserve.or.jp>. The registration is
-free.
+Technologies Japan Company and the author (Masaharu Goto). Source
+code, binary executable or library of Cint and associated tools can be
+used, modified and distributed with no royalty for any purpose
+provided that the copyright notice appear in all copies and that both
+that copyright notice and this permission notice appear in supporting
+documentation. Registration is recommended for commercial use
+(=Selling a software that uses cint as a component). Send e-mail to
+the author (MXJ02154@niftyserve.or.jp) with your name, e-mail address,
+institute, purpose of using cint and computer platform. If a
+modification is made on any of the source or documentation, it has to
+be clearly documented and expressed. Agilent Technologies Japan and
+the author make no representations about the suitability of this
+software for any purpose.
git://www.ginac.de / ginac.git / blobdiff