This class represents a Minkowski metric tensor. More...
#include <tensor.h>
Public Member Functions | |
| minkmetric (bool pos_sig) | |
| Construct Lorentz metric tensor with given signature. | |
| bool | info (unsigned inf) const |
| Information about the object. | |
| ex | eval_indexed (const basic &i) const |
| Automatic symbolic evaluation of an indexed Lorentz metric tensor. | |
| void | archive (archive_node &n) const |
| Save (a.k.a. | |
| void | read_archive (const archive_node &n, lst &syms) |
| Read (a.k.a. | |
Protected Member Functions | |
| unsigned | return_type () const |
| void | do_print (const print_context &c, unsigned level) const |
| Default output to stream. | |
| void | do_print_latex (const print_latex &c, unsigned level) const |
Private Attributes | |
| bool | pos_sig |
| If true, the metric is diag(-1,1,1...). | |
Detailed Description
This class represents a Minkowski metric tensor.
It has all the properties of a metric tensor and is (as a matrix) equal to diag(1,-1,-1,...) or diag(-1,1,1,...).
Constructor & Destructor Documentation
| GiNaC::minkmetric::minkmetric | ( | bool | pos_sig | ) |
Construct Lorentz metric tensor with given signature.
Definition at line 75 of file tensor.cpp.
Member Function Documentation
| bool GiNaC::minkmetric::info | ( | unsigned | inf | ) | const [virtual] |
Information about the object.
- See also:
- class info_flags
Reimplemented from GiNaC::tensmetric.
Definition at line 167 of file tensor.cpp.
References GiNaC::info_flags::real.
Automatic symbolic evaluation of an indexed Lorentz metric tensor.
Reimplemented from GiNaC::tensmetric.
Definition at line 284 of file tensor.cpp.
References GiNaC::_ex0, GiNaC::_ex1, GiNaC::_ex_1, GiNaC::idx::get_value(), GINAC_ASSERT, GiNaC::info_flags::nonnegint, GiNaC::basic::nops(), GiNaC::basic::op(), pos_sig, and GiNaC::to_int().
| void GiNaC::minkmetric::archive | ( | archive_node & | n | ) | const [virtual] |
Save (a.k.a.
serialize) object into archive.
Reimplemented from GiNaC::basic.
Definition at line 106 of file tensor.cpp.
References GiNaC::archive_node::add_bool(), and pos_sig.
| void GiNaC::minkmetric::read_archive | ( | const archive_node & | n, |
| lst & | syms | ||
| ) | [virtual] |
Read (a.k.a.
deserialize) object from archive.
Reimplemented from GiNaC::basic.
Definition at line 99 of file tensor.cpp.
References GiNaC::archive_node::find_bool(), and pos_sig.
| unsigned GiNaC::minkmetric::return_type | ( | ) | const [inline, protected, virtual] |
Reimplemented from GiNaC::tensmetric.
Definition at line 116 of file tensor.h.
References GiNaC::return_types::commutative.
| void GiNaC::minkmetric::do_print | ( | const print_context & | c, |
| unsigned | level | ||
| ) | const [protected] |
Default output to stream.
Reimplemented from GiNaC::tensmetric.
| void GiNaC::minkmetric::do_print_latex | ( | const print_latex & | c, |
| unsigned | level | ||
| ) | const [protected] |
Member Data Documentation
bool GiNaC::minkmetric::pos_sig [private] |
If true, the metric is diag(-1,1,1...).
Otherwise it is diag(1,-1,-1,...).
Definition at line 122 of file tensor.h.
Referenced by archive(), eval_indexed(), and read_archive().
The documentation for this class was generated from the following files: