X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=ginac%2Fcolor.cpp;h=aeaf112c6e16adb9e9b9906a74bb9c3bca86eab6;hp=561f88b1e09d00c71f7b76231143289c1e0949fa;hb=f82099178e27212fdc6801bc609202c0f9c2193e;hpb=aa6281216091efd92dc5fcc3f96c7189114e80f1 diff --git a/ginac/color.cpp b/ginac/color.cpp index 561f88b1..aeaf112c 100644 --- a/ginac/color.cpp +++ b/ginac/color.cpp @@ -3,7 +3,7 @@ * Implementation of GiNaC's color (SU(3) Lie algebra) objects. */ /* - * GiNaC Copyright (C) 1999-2001 Johannes Gutenberg University Mainz, Germany + * GiNaC Copyright (C) 1999-2002 Johannes Gutenberg University 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 @@ -20,7 +20,7 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ -#include +#include #include #include "color.h" @@ -28,11 +28,11 @@ #include "ncmul.h" #include "symmetry.h" #include "numeric.h" +#include "mul.h" #include "power.h" // for sqrt() #include "symbol.h" #include "print.h" #include "archive.h" -#include "debugmsg.h" #include "utils.h" namespace GiNaC { @@ -44,12 +44,11 @@ GINAC_IMPLEMENT_REGISTERED_CLASS(su3f, tensor) GINAC_IMPLEMENT_REGISTERED_CLASS(su3d, tensor) ////////// -// default constructor, destructor, copy constructor assignment operator and helpers +// default ctor, dtor, copy ctor, assignment operator and helpers ////////// color::color() : representation_label(0) { - debugmsg("color default constructor", LOGLEVEL_CONSTRUCT); tinfo_key = TINFO_color; } @@ -74,7 +73,6 @@ DEFAULT_CTORS(su3d) * @see color_ONE */ color::color(const ex & b, unsigned char rl) : inherited(b), representation_label(rl) { - debugmsg("color constructor from ex,unsigned char", LOGLEVEL_CONSTRUCT); tinfo_key = TINFO_color; } @@ -83,19 +81,16 @@ color::color(const ex & b, unsigned char rl) : inherited(b), representation_labe * @see color_T */ color::color(const ex & b, const ex & i1, unsigned char rl) : inherited(b, i1), representation_label(rl) { - debugmsg("color constructor from ex,ex,unsigned char", LOGLEVEL_CONSTRUCT); tinfo_key = TINFO_color; } color::color(unsigned char rl, const exvector & v, bool discardable) : inherited(sy_none(), v, discardable), representation_label(rl) { - debugmsg("color constructor from unsigned char,exvector", LOGLEVEL_CONSTRUCT); tinfo_key = TINFO_color; } color::color(unsigned char rl, exvector * vp) : inherited(sy_none(), vp), representation_label(rl) { - debugmsg("color constructor from unsigned char,exvector *", LOGLEVEL_CONSTRUCT); tinfo_key = TINFO_color; } @@ -105,7 +100,6 @@ color::color(unsigned char rl, exvector * vp) : inherited(sy_none(), vp), repres color::color(const archive_node &n, const lst &sym_lst) : inherited(n, sym_lst) { - debugmsg("color constructor from archive_node", LOGLEVEL_CONSTRUCT); unsigned rl; n.find_unsigned("label", rl); representation_label = rl; @@ -129,7 +123,7 @@ DEFAULT_ARCHIVING(su3d) int color::compare_same_type(const basic & other) const { - GINAC_ASSERT(is_of_type(other, color)); + GINAC_ASSERT(is_a(other)); const color &o = static_cast(other); if (representation_label != o.representation_label) { @@ -142,7 +136,7 @@ int color::compare_same_type(const basic & other) const bool color::match_same_type(const basic & other) const { - GINAC_ASSERT(is_of_type(other, color)); + GINAC_ASSERT(is_a(other)); const color &o = static_cast(other); return representation_label == o.representation_label; @@ -223,13 +217,13 @@ static ex permute_free_index_to_front(const exvector & iv3, const exvector & iv2 /** Automatic symbolic evaluation of indexed symmetric structure constant. */ ex su3d::eval_indexed(const basic & i) const { - GINAC_ASSERT(is_of_type(i, indexed)); + GINAC_ASSERT(is_a(i)); GINAC_ASSERT(i.nops() == 4); - GINAC_ASSERT(is_ex_of_type(i.op(0), su3d)); + GINAC_ASSERT(is_a(i.op(0))); // Convolutions are zero if (!(static_cast(i).get_dummy_indices().empty())) - return _ex0(); + return _ex0; // Numeric evaluation if (static_cast(i).all_index_values_are(info_flags::nonnegint)) { @@ -247,18 +241,18 @@ ex su3d::eval_indexed(const basic & i) const // Check for non-zero elements if (CMPINDICES(1,4,6) || CMPINDICES(1,5,7) || CMPINDICES(2,5,6) || CMPINDICES(3,4,4) || CMPINDICES(3,5,5)) - return _ex1_2(); + return _ex1_2; else if (CMPINDICES(2,4,7) || CMPINDICES(3,6,6) || CMPINDICES(3,7,7)) - return _ex_1_2(); + return _ex_1_2; else if (CMPINDICES(1,1,8) || CMPINDICES(2,2,8) || CMPINDICES(3,3,8)) - return sqrt(_ex3())/3; + return sqrt(_ex3)*_ex1_3; else if (CMPINDICES(8,8,8)) - return -sqrt(_ex3())/3; + return sqrt(_ex3)*_ex_1_3; else if (CMPINDICES(4,4,8) || CMPINDICES(5,5,8) || CMPINDICES(6,6,8) || CMPINDICES(7,7,8)) - return -sqrt(_ex3())/6; + return sqrt(_ex3)/_ex_6; else - return _ex0(); + return _ex0; } // No further simplifications @@ -268,9 +262,9 @@ ex su3d::eval_indexed(const basic & i) const /** Automatic symbolic evaluation of indexed antisymmetric structure constant. */ ex su3f::eval_indexed(const basic & i) const { - GINAC_ASSERT(is_of_type(i, indexed)); + GINAC_ASSERT(is_a(i)); GINAC_ASSERT(i.nops() == 4); - GINAC_ASSERT(is_ex_of_type(i.op(0), su3f)); + GINAC_ASSERT(is_a(i.op(0))); // Numeric evaluation if (static_cast(i).all_index_values_are(info_flags::nonnegint)) { @@ -289,13 +283,13 @@ ex su3f::eval_indexed(const basic & i) const return sign; else if (CMPINDICES(1,4,7) || CMPINDICES(2,4,6) || CMPINDICES(2,5,7) || CMPINDICES(3,4,5)) - return _ex1_2() * sign; + return _ex1_2 * sign; else if (CMPINDICES(1,5,6) || CMPINDICES(3,6,7)) - return _ex_1_2() * sign; + return _ex_1_2 * sign; else if (CMPINDICES(4,5,8) || CMPINDICES(6,7,8)) - return sqrt(_ex3())/2 * sign; + return sqrt(_ex3)/2 * sign; else - return _ex0(); + return _ex0; } // No further simplifications @@ -306,10 +300,10 @@ ex su3f::eval_indexed(const basic & i) const /** Contraction of generator with something else. */ bool su3t::contract_with(exvector::iterator self, exvector::iterator other, exvector & v) const { - GINAC_ASSERT(is_ex_of_type(*self, indexed)); - GINAC_ASSERT(is_ex_of_type(*other, indexed)); + GINAC_ASSERT(is_a(*self)); + GINAC_ASSERT(is_a(*other)); GINAC_ASSERT(self->nops() == 2); - GINAC_ASSERT(is_ex_of_type(self->op(0), su3t)); + GINAC_ASSERT(is_a(self->op(0))); unsigned char rl = ex_to(*self).get_representation_label(); if (is_ex_exactly_of_type(other->op(0), su3t)) { @@ -324,7 +318,7 @@ bool su3t::contract_with(exvector::iterator self, exvector::iterator other, exve } else if (other - self == 2 && is_ex_of_type(self[1], color)) { *self = numeric(-1, 6); - *other = _ex1(); + *other = _ex1; return true; // T.a S T.a = 1/2 Tr(S) - 1/6 S @@ -338,14 +332,14 @@ bool su3t::contract_with(exvector::iterator self, exvector::iterator other, exve } it = self + 1; - ex S = _ex1(); + ex S = _ex1; while (it != other) { S *= *it; - *it++ = _ex1(); + *it++ = _ex1; } *self = color_trace(S, rl) * color_ONE(rl) / 2 - S / 6; - *other = _ex1(); + *other = _ex1; return true; } } @@ -356,10 +350,10 @@ bool su3t::contract_with(exvector::iterator self, exvector::iterator other, exve /** Contraction of an indexed symmetric structure constant with something else. */ bool su3d::contract_with(exvector::iterator self, exvector::iterator other, exvector & v) const { - GINAC_ASSERT(is_ex_of_type(*self, indexed)); - GINAC_ASSERT(is_ex_of_type(*other, indexed)); + GINAC_ASSERT(is_a(*self)); + GINAC_ASSERT(is_a(*other)); GINAC_ASSERT(self->nops() == 4); - GINAC_ASSERT(is_ex_of_type(self->op(0), su3d)); + GINAC_ASSERT(is_a(self->op(0))); if (is_ex_exactly_of_type(other->op(0), su3d)) { @@ -374,7 +368,7 @@ bool su3d::contract_with(exvector::iterator self, exvector::iterator other, exve // d.abc d.abc = 40/3 if (dummy_indices.size() == 3) { *self = numeric(40, 3); - *other = _ex1(); + *other = _ex1; return true; // d.akl d.bkl = 5/3 delta.ab @@ -385,7 +379,7 @@ bool su3d::contract_with(exvector::iterator self, exvector::iterator other, exve ita = set_difference(other_indices.begin(), other_indices.end(), dummy_indices.begin(), dummy_indices.end(), ita, ex_is_less()); GINAC_ASSERT(a.size() == 2); *self = numeric(5, 3) * delta_tensor(a[0], a[1]); - *other = _ex1(); + *other = _ex1; return true; } @@ -404,7 +398,7 @@ bool su3d::contract_with(exvector::iterator self, exvector::iterator other, exve ex a = permute_free_index_to_front(self_indices, dummy_indices, sig); *self = numeric(5, 6); other[0] = color_T(a, ex_to(other[0]).get_representation_label()); - other[1] = _ex1(); + other[1] = _ex1; return true; } } @@ -415,10 +409,10 @@ bool su3d::contract_with(exvector::iterator self, exvector::iterator other, exve /** Contraction of an indexed antisymmetric structure constant with something else. */ bool su3f::contract_with(exvector::iterator self, exvector::iterator other, exvector & v) const { - GINAC_ASSERT(is_ex_of_type(*self, indexed)); - GINAC_ASSERT(is_ex_of_type(*other, indexed)); + GINAC_ASSERT(is_a(*self)); + GINAC_ASSERT(is_a(*other)); GINAC_ASSERT(self->nops() == 4); - GINAC_ASSERT(is_ex_of_type(self->op(0), su3f)); + GINAC_ASSERT(is_a(self->op(0))); if (is_ex_exactly_of_type(other->op(0), su3f)) { // f*d is handled by su3d class @@ -429,7 +423,7 @@ bool su3f::contract_with(exvector::iterator self, exvector::iterator other, exve // f.abc f.abc = 24 if (dummy_indices.size() == 3) { *self = 24; - *other = _ex1(); + *other = _ex1; return true; // f.akl f.bkl = 3 delta.ab @@ -438,7 +432,7 @@ bool su3f::contract_with(exvector::iterator self, exvector::iterator other, exve ex a = permute_free_index_to_front(ex_to(*self).get_indices(), dummy_indices, sign1); ex b = permute_free_index_to_front(ex_to(*other).get_indices(), dummy_indices, sign2); *self = sign1 * sign2 * 3 * delta_tensor(a, b); - *other = _ex1(); + *other = _ex1; return true; } @@ -457,7 +451,7 @@ bool su3f::contract_with(exvector::iterator self, exvector::iterator other, exve ex a = permute_free_index_to_front(self_indices, dummy_indices, sig); *self = numeric(3, 2) * sig * I; other[0] = color_T(a, ex_to(other[0]).get_representation_label()); - other[1] = _ex1(); + other[1] = _ex1; return true; } } @@ -522,14 +516,14 @@ ex color_trace(const ex & e, unsigned char rl) if (ex_to(e).get_representation_label() == rl && is_ex_of_type(e.op(0), su3one)) - return _ex3(); + return _ex3; else - return _ex0(); + return _ex0; } else if (is_ex_exactly_of_type(e, mul)) { // Trace of product: pull out non-color factors - ex prod = _ex1(); + ex prod = _ex1; for (unsigned i=0; i