* Interface to GiNaC's clifford algebra (Dirac gamma) objects. */
/*
- * GiNaC Copyright (C) 1999-2001 Johannes Gutenberg University Mainz, Germany
+ * GiNaC Copyright (C) 1999-2004 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
// internal constructors
clifford(unsigned char rl, const exvector & v, bool discardable = false);
- clifford(unsigned char rl, exvector * vp); // vp will be deleted
+ clifford(unsigned char rl, std::auto_ptr<exvector> vp);
// functions overriding virtual functions from base classes
-public:
- void print(const print_context & c, unsigned level = 0) const;
-
protected:
+ ex eval_ncmul(const exvector & v) const;
bool match_same_type(const basic & other) const;
- ex simplify_ncmul(const exvector & v) const;
- ex thisexprseq(const exvector & v) const;
- ex thisexprseq(exvector * vp) const;
- unsigned return_type(void) const { return return_types::noncommutative; }
- unsigned return_type_tinfo(void) const { return TINFO_clifford + representation_label; }
+ ex thiscontainer(const exvector & v) const;
+ ex thiscontainer(std::auto_ptr<exvector> vp) const;
+ unsigned return_type() const { return return_types::noncommutative; }
+ unsigned return_type_tinfo() const { return TINFO_clifford + representation_label; }
// non-virtual functions in this class
public:
- unsigned char get_representation_label(void) const {return representation_label;}
+ unsigned char get_representation_label() const {return representation_label;}
+
+protected:
+ void do_print_dflt(const print_dflt & c, unsigned level) const;
+ void do_print_latex(const print_latex & c, unsigned level) const;
// member variables
private:
{
GINAC_DECLARE_REGISTERED_CLASS(diracone, tensor)
- // functions overriding virtual functions from base classes
-public:
- void print(const print_context & c, unsigned level = 0) const;
+ // non-virtual functions in this class
+protected:
+ void do_print(const print_context & c, unsigned level) const;
+ void do_print_latex(const print_latex & c, unsigned level) const;
};
// functions overriding virtual functions from base classes
public:
- void print(const print_context & c, unsigned level = 0) const;
bool contract_with(exvector::iterator self, exvector::iterator other, exvector & v) const;
+
+ // non-virtual functions in this class
+protected:
+ void do_print(const print_context & c, unsigned level) const;
+ void do_print_latex(const print_latex & c, unsigned level) const;
};
GINAC_DECLARE_REGISTERED_CLASS(diracgamma5, tensor)
// functions overriding virtual functions from base classes
-public:
- void print(const print_context & c, unsigned level = 0) const;
+ ex conjugate() const;
+
+ // non-virtual functions in this class
+protected:
+ void do_print(const print_context & c, unsigned level) const;
+ void do_print_latex(const print_latex & c, unsigned level) const;
+};
+
+
+/** This class represents the Dirac gammaL object which behaves like
+ * 1/2 (1-gamma5). */
+class diracgammaL : public tensor
+{
+ GINAC_DECLARE_REGISTERED_CLASS(diracgammaL, tensor)
+
+ // functions overriding virtual functions from base classes
+ ex conjugate() const;
+
+ // non-virtual functions in this class
+protected:
+ void do_print(const print_context & c, unsigned level) const;
+ void do_print_latex(const print_latex & c, unsigned level) const;
+};
+
+
+/** This class represents the Dirac gammaL object which behaves like
+ * 1/2 (1+gamma5). */
+class diracgammaR : public tensor
+{
+ GINAC_DECLARE_REGISTERED_CLASS(diracgammaR, tensor)
+
+ // functions overriding virtual functions from base classes
+ ex conjugate() const;
+
+ // non-virtual functions in this class
+protected:
+ void do_print(const print_context & c, unsigned level) const;
+ void do_print_latex(const print_latex & c, unsigned level) const;
};
* @return newly constructed object */
ex dirac_gamma5(unsigned char rl = 0);
-/** This returns (dirac_ONE(rl) + dirac_gamma5(rl)). */
-ex dirac_gamma6(unsigned char rl = 0);
+/** Create a Dirac gammaL object.
+ *
+ * @param rl Representation label
+ * @return newly constructed object */
+ex dirac_gammaL(unsigned char rl = 0);
-/** This returns (dirac_ONE(rl) - dirac_gamma5(rl)). */
-ex dirac_gamma7(unsigned char rl = 0);
+/** Create a Dirac gammaR object.
+ *
+ * @param rl Representation label
+ * @return newly constructed object */
+ex dirac_gammaR(unsigned char rl = 0);
/** Create a term of the form e_mu * gamma~mu with a unique index mu.
*
+ * @param e Original expression
* @param dim Dimension of index
* @param rl Representation label */
ex dirac_slash(const ex & e, const ex & dim, unsigned char rl = 0);